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", @ANYBLOB="01000000000000000000030074261b26f122484d31000000c200"], 0x20}}, 0x90) (async) socket$inet6_tcp(0xa, 0x1, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) ioctl$SNDRV_RAWMIDI_IOCTL_PVERSION(r5, 0x80045700, &(0x7f0000000180)) socket$inet6_udplite(0xa, 0x2, 0x88) (async) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r3) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x28, r6, 0x100, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x21}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x28}, 0x1, 0x0, 0x0, 0x20008000}, 0x40000) openat$dsp(0xffffffffffffff9c, &(0x7f00000001c0), 0x18082, 0x0) [ 1051.570472] block nbd5: not configured, cannot reconfigure 12:34:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYRES16=r2, @ANYBLOB="01"], 0x20}}, 0x90) 12:34:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x40, 0xfffffffe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x8081) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000000c0)={&(0x7f0000000000), 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, r5, 0x10, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}]}, 0x20}, 0x1, 0x0, 0x0, 0x4000000}, 0x4000000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) 12:34:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000200), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14, r4, 0x0, 0x0, 0xfffffffd}, 0x14}, 0x1, 0x0, 0x0, 0x4c841}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r6) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x38, r7, 0x200, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}]}, 0x38}, 0x1, 0x0, 0x0, 0x804}, 0x50) (async, rerun: 32) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="140000006a53e9e47de9bbc5d79d7c3df0fcb24db02e32656efe3eba10c8bdd46829ddff362a950e9bd1c00600283627701ceded7e3d746e12a3ad5e63806a128f926c406ed288f00b457053f6bb815a32bbfddc3ae2534417a37556367f24a2ea8c39a1c87f0545c55591c278fe2b94ac16941b86318acdb314a5bdc0791754ca430f4880f4718b9ced5fd310f8f8fa1b4f44059cc05d802a87007466ef7516279690b73aa24c70684cc17ef614724b4b0b69490ba89df8612aea1b9ca6e05b87528bf904c8254f4e0d8f", @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) (rerun: 32) [ 1051.615027] block nbd2: not configured, cannot reconfigure 12:34:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2], 0x20}}, 0x90) 12:34:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="01"], 0x20}}, 0x90) 12:34:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r2) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) 12:34:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB], 0x20}}, 0x90) 12:34:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x40, 0xfffffffe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x8081) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000000c0)={&(0x7f0000000000), 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, r5, 0x10, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}]}, 0x20}, 0x1, 0x0, 0x0, 0x4000000}, 0x4000000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x40, 0xfffffffe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x8081) (async) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000000c0)={&(0x7f0000000000), 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, r5, 0x10, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}]}, 0x20}, 0x1, 0x0, 0x0, 0x4000000}, 0x4000000) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) (async) [ 1051.683295] netlink: 44 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1051.705396] nbd: must specify a device to reconfigure [ 1051.716548] nbd: must specify a device to reconfigure [ 1051.726417] nbd: must specify a device to reconfigure 12:34:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_open_dev$audion(&(0x7f0000000000), 0x6, 0x100) r3 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000080), 0xffffffffffffffff) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_MODIFY(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x44, r3, 0x800, 0x70bd29, 0x25dfdbfc, {}, [@L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x1}, @L2TP_ATTR_DEBUG={0x8, 0x11, 0x1}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x9}, @L2TP_ATTR_COOKIE={0xc, 0xf, 0x7ff}, @L2TP_ATTR_FD={0x8, 0x17, @l2tp6=r4}]}, 0x44}, 0x1, 0x0, 0x0, 0x4000}, 0x1) r5 = syz_open_dev$audion(&(0x7f00000001c0), 0xc8ce, 0x8842) ioctl$VHOST_NET_SET_BACKEND(r5, 0x4008af30, &(0x7f0000000200)={0x0, r4}) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r6, 0x1}, 0x14}}, 0x0) 12:34:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000200), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14, r4, 0x0, 0x0, 0xfffffffd}, 0x14}, 0x1, 0x0, 0x0, 0x4c841}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r6) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x38, r7, 0x200, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}]}, 0x38}, 0x1, 0x0, 0x0, 0x804}, 0x50) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="140000006a53e9e47de9bbc5d79d7c3df0fcb24db02e32656efe3eba10c8bdd46829ddff362a950e9bd1c00600283627701ceded7e3d746e12a3ad5e63806a128f926c406ed288f00b457053f6bb815a32bbfddc3ae2534417a37556367f24a2ea8c39a1c87f0545c55591c278fe2b94ac16941b86318acdb314a5bdc0791754ca430f4880f4718b9ced5fd310f8f8fa1b4f44059cc05d802a87007466ef7516279690b73aa24c70684cc17ef614724b4b0b69490ba89df8612aea1b9ca6e05b87528bf904c8254f4e0d8f", @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) 12:34:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="01"], 0x20}}, 0x90) 12:34:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB], 0x20}}, 0x90) [ 1051.784294] nbd: must specify a device to reconfigure 12:34:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r2) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) (async) 12:34:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB], 0x20}}, 0x90) 12:34:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="01"], 0x20}}, 0x90) 12:34:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x40, 0xfffffffe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x8081) (async) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000000c0)={&(0x7f0000000000), 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, r5, 0x10, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}]}, 0x20}, 0x1, 0x0, 0x0, 0x4000000}, 0x4000000) (async, rerun: 32) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) (rerun: 32) 12:34:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_open_dev$audion(&(0x7f0000000000), 0x6, 0x100) (async, rerun: 32) r3 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000080), 0xffffffffffffffff) (async, rerun: 32) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_MODIFY(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x44, r3, 0x800, 0x70bd29, 0x25dfdbfc, {}, [@L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x1}, @L2TP_ATTR_DEBUG={0x8, 0x11, 0x1}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x9}, @L2TP_ATTR_COOKIE={0xc, 0xf, 0x7ff}, @L2TP_ATTR_FD={0x8, 0x17, @l2tp6=r4}]}, 0x44}, 0x1, 0x0, 0x0, 0x4000}, 0x1) r5 = syz_open_dev$audion(&(0x7f00000001c0), 0xc8ce, 0x8842) ioctl$VHOST_NET_SET_BACKEND(r5, 0x4008af30, &(0x7f0000000200)={0x0, r4}) (async) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r6, 0x1}, 0x14}}, 0x0) [ 1051.816457] nbd: must specify a device to reconfigure [ 1051.836656] nbd: must specify a device to reconfigure [ 1051.858171] block nbd2: not configured, cannot reconfigure 12:34:07 executing program 2: r0 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) ioctl$SNDRV_CTL_IOCTL_CARD_INFO(r0, 0x81785501, &(0x7f0000000000)=""/29) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) [ 1051.884163] nbd: must specify a device to reconfigure 12:34:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a0008000000000000800000c6a4ed53dba4884d74f6"], 0x20}}, 0x90) 12:34:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00', @ANYRES16=r2, @ANYBLOB="01"], 0x20}}, 0x90) 12:34:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$TIOCGPTPEER(0xffffffffffffffff, 0x5441, 0x4) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) ioctl$SNDRV_CTL_IOCTL_TLV_COMMAND(0xffffffffffffffff, 0xc008551c, &(0x7f0000000000)={0xfffffff9, 0x10, [0xffffffc6, 0x7ff, 0x6, 0x3]}) [ 1051.917564] nbd: must specify a device to reconfigure 12:34:07 executing program 2: r0 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) ioctl$SNDRV_CTL_IOCTL_CARD_INFO(r0, 0x81785501, &(0x7f0000000000)=""/29) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) [ 1051.963029] nbd: must specify a device to reconfigure 12:34:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_open_dev$audion(&(0x7f0000000000), 0x6, 0x100) r3 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000080), 0xffffffffffffffff) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_MODIFY(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x44, r3, 0x800, 0x70bd29, 0x25dfdbfc, {}, [@L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x1}, @L2TP_ATTR_DEBUG={0x8, 0x11, 0x1}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x9}, @L2TP_ATTR_COOKIE={0xc, 0xf, 0x7ff}, @L2TP_ATTR_FD={0x8, 0x17, @l2tp6=r4}]}, 0x44}, 0x1, 0x0, 0x0, 0x4000}, 0x1) r5 = syz_open_dev$audion(&(0x7f00000001c0), 0xc8ce, 0x8842) ioctl$VHOST_NET_SET_BACKEND(r5, 0x4008af30, &(0x7f0000000200)={0x0, r4}) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r6, 0x1}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_open_dev$audion(&(0x7f0000000000), 0x6, 0x100) (async) syz_genetlink_get_family_id$l2tp(&(0x7f0000000080), 0xffffffffffffffff) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_MODIFY(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x44, r3, 0x800, 0x70bd29, 0x25dfdbfc, {}, [@L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x1}, @L2TP_ATTR_DEBUG={0x8, 0x11, 0x1}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x9}, @L2TP_ATTR_COOKIE={0xc, 0xf, 0x7ff}, @L2TP_ATTR_FD={0x8, 0x17, @l2tp6=r4}]}, 0x44}, 0x1, 0x0, 0x0, 0x4000}, 0x1) (async) syz_open_dev$audion(&(0x7f00000001c0), 0xc8ce, 0x8842) (async) ioctl$VHOST_NET_SET_BACKEND(r5, 0x4008af30, &(0x7f0000000200)={0x0, r4}) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r6, 0x1}, 0x14}}, 0x0) (async) 12:34:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01"], 0x20}}, 0x90) 12:34:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x30, 0x0, 0x400, 0x7fffffff, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3247}]}, 0x30}, 0x1, 0x0, 0x0, 0x20040000}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r1) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x2002) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) ioctl$KDGKBENT(r3, 0x4b46, &(0x7f0000000200)={0x3, 0x7f, 0xef}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)=ANY=[@ANYBLOB='8\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="02002abd7000fddbdf25010000000c000300c1240000000000000c00060002000000000000000c0004000000000000000080"], 0x38}, 0x1, 0x0, 0x0, 0x40840}, 0x0) 12:34:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00', @ANYRES16=r2, @ANYBLOB="01"], 0x20}}, 0x90) 12:34:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) ioctl$TIOCGPTPEER(0xffffffffffffffff, 0x5441, 0x4) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) ioctl$SNDRV_CTL_IOCTL_TLV_COMMAND(0xffffffffffffffff, 0xc008551c, &(0x7f0000000000)={0xfffffff9, 0x10, [0xffffffc6, 0x7ff, 0x6, 0x3]}) [ 1052.010368] nbd: must specify a device to reconfigure [ 1052.048395] nbd: must specify a device to reconfigure 12:34:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01"], 0x20}}, 0x90) 12:34:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00', @ANYRES16=r2, @ANYBLOB="01"], 0x20}}, 0x90) [ 1052.076284] nbd: must specify a device to reconfigure 12:34:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x30, 0x0, 0x400, 0x7fffffff, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3247}]}, 0x30}, 0x1, 0x0, 0x0, 0x20040000}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r1) (async) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x2002) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) (async) ioctl$KDGKBENT(r3, 0x4b46, &(0x7f0000000200)={0x3, 0x7f, 0xef}) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)=ANY=[@ANYBLOB='8\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="02002abd7000fddbdf25010000000c000300c1240000000000000c00060002000000000000000c0004000000000000000080"], 0x38}, 0x1, 0x0, 0x0, 0x40840}, 0x0) 12:34:07 executing program 2: r0 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) ioctl$SNDRV_CTL_IOCTL_CARD_INFO(r0, 0x81785501, &(0x7f0000000000)=""/29) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) (async) ioctl$SNDRV_CTL_IOCTL_CARD_INFO(r0, 0x81785501, &(0x7f0000000000)=""/29) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) (async) 12:34:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00', @ANYRES16=r2, @ANYBLOB="01"], 0x20}}, 0x90) 12:34:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$TIOCGPTPEER(0xffffffffffffffff, 0x5441, 0x4) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (async) ioctl$SNDRV_CTL_IOCTL_TLV_COMMAND(0xffffffffffffffff, 0xc008551c, &(0x7f0000000000)={0xfffffff9, 0x10, [0xffffffc6, 0x7ff, 0x6, 0x3]}) [ 1052.105685] nbd: must specify a device to reconfigure 12:34:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000140)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="01020000000000000000033d3d334b594cd5b022230e70380b1f000000101808d3420c5e7d2b51da7f8244e000745b0fbf4b98f8fd041d282dca3cfb5df4a1761dd7ee88beb5eb43d0c0021a01f1"], 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="00082abd7000fbdbdf25020000000c00078008000100", @ANYRES32=r4, @ANYBLOB="75e1e072d73e0c0003000700"], 0x2c}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000050) 12:34:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01"], 0x20}}, 0x90) 12:34:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00', @ANYRES16=r2, @ANYBLOB="01"], 0x20}}, 0x90) 12:34:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a00080000"], 0x20}}, 0x90) 12:34:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000240)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x6c, r2, 0x400, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xd}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x6c}, 0x1, 0x0, 0x0, 0x20000810}, 0x20048847) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="010000000000000000000303000048ca9c9a8d152c1b86473ca90a618a0ce691f2ef4d1989aaca7795a121f8fc15a4a04bd954b1c236af9cf6fbea93a47af2edb74f5e68f08687f2b677fb92a5aabad30db5ddcdd918b95070eb608dac59389058cb78ef900e76089783ab3acfbb00f921dcfc1a519c2d6aab589f506fb249d8398ee64505dde289ec7aa947817e2a18ede3e927c1f34245c13e6165b33f450e95236c709c2cb1413deee3a556389d1a3817d761edb19e579e86e104e27988c317a780576bb9dd24c607d4b24a50ba44"], 0x14}}, 0x0) openat$cuse(0xffffffffffffff9c, &(0x7f0000000100), 0x2, 0x0) 12:34:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000080)={&(0x7f00000000c0)={0x14, 0x0, 0x300, 0x70bd29, 0x25dfdbfb}, 0x14}, 0x1, 0x0, 0x0, 0x8884}, 0x40000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000100)=ANY=[@ANYBLOB="14f7c9736a8f3200", @ANYRES16=0x0, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) [ 1052.173847] nbd: must specify a device to reconfigure [ 1052.187975] nbd: must specify a device to reconfigure [ 1052.195990] nbd: must specify a device to reconfigure [ 1052.215180] nbd: must specify a device to reconfigure 12:34:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x30, 0x0, 0x400, 0x7fffffff, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3247}]}, 0x30}, 0x1, 0x0, 0x0, 0x20040000}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r1) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x2002) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) ioctl$KDGKBENT(r3, 0x4b46, &(0x7f0000000200)={0x3, 0x7f, 0xef}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)=ANY=[@ANYBLOB='8\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="02002abd7000fddbdf25010000000c000300c1240000000000000c00060002000000000000000c0004000000000000000080"], 0x38}, 0x1, 0x0, 0x0, 0x40840}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x30, 0x0, 0x400, 0x7fffffff, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3247}]}, 0x30}, 0x1, 0x0, 0x0, 0x20040000}, 0x4000000) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r1) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x2002) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) (async) ioctl$KDGKBENT(r3, 0x4b46, &(0x7f0000000200)={0x3, 0x7f, 0xef}) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)=ANY=[@ANYBLOB='8\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="02002abd7000fddbdf25010000000c000300c1240000000000000c00060002000000000000000c0004000000000000000080"], 0x38}, 0x1, 0x0, 0x0, 0x40840}, 0x0) (async) 12:34:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000140)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="01020000000000000000033d3d334b594cd5b022230e70380b1f000000101808d3420c5e7d2b51da7f8244e000745b0fbf4b98f8fd041d282dca3cfb5df4a1761dd7ee88beb5eb43d0c0021a01f1"], 0x14}}, 0x0) (async, rerun: 64) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="00082abd7000fbdbdf25020000000c00078008000100", @ANYRES32=r4, @ANYBLOB="75e1e072d73e0c0003000700"], 0x2c}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000050) 12:34:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100"], 0x20}}, 0x90) 12:34:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00', @ANYRES16=r2, @ANYBLOB="01"], 0x20}}, 0x90) 12:34:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000240)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x6c, r2, 0x400, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xd}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x6c}, 0x1, 0x0, 0x0, 0x20000810}, 0x20048847) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="010000000000000000000303000048ca9c9a8d152c1b86473ca90a618a0ce691f2ef4d1989aaca7795a121f8fc15a4a04bd954b1c236af9cf6fbea93a47af2edb74f5e68f08687f2b677fb92a5aabad30db5ddcdd918b95070eb608dac59389058cb78ef900e76089783ab3acfbb00f921dcfc1a519c2d6aab589f506fb249d8398ee64505dde289ec7aa947817e2a18ede3e927c1f34245c13e6165b33f450e95236c709c2cb1413deee3a556389d1a3817d761edb19e579e86e104e27988c317a780576bb9dd24c607d4b24a50ba44"], 0x14}}, 0x0) (async) openat$cuse(0xffffffffffffff9c, &(0x7f0000000100), 0x2, 0x0) 12:34:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000080)={&(0x7f00000000c0)={0x14, 0x0, 0x300, 0x70bd29, 0x25dfdbfb}, 0x14}, 0x1, 0x0, 0x0, 0x8884}, 0x40000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000100)=ANY=[@ANYBLOB="14f7c9736a8f3200", @ANYRES16=0x0, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000080)={&(0x7f00000000c0)={0x14, 0x0, 0x300, 0x70bd29, 0x25dfdbfb}, 0x14}, 0x1, 0x0, 0x0, 0x8884}, 0x40000) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000100)=ANY=[@ANYBLOB="14f7c9736a8f3200", @ANYRES16=0x0, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) (async) [ 1052.280398] nbd: must specify a device to reconfigure [ 1052.298422] nbd: must specify a device to reconfigure 12:34:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100"], 0x20}}, 0x90) 12:34:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01"], 0x20}}, 0x0) 12:34:07 executing program 1: ioctl$SOUND_MIXER_READ_RECMASK(0xffffffffffffffff, 0x80044dfd, &(0x7f0000000040)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x800}]}, 0x20}}, 0x90) [ 1052.339385] nbd: must specify a device to reconfigure 12:34:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000240)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x6c, r2, 0x400, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xd}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x6c}, 0x1, 0x0, 0x0, 0x20000810}, 0x20048847) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="010000000000000000000303000048ca9c9a8d152c1b86473ca90a618a0ce691f2ef4d1989aaca7795a121f8fc15a4a04bd954b1c236af9cf6fbea93a47af2edb74f5e68f08687f2b677fb92a5aabad30db5ddcdd918b95070eb608dac59389058cb78ef900e76089783ab3acfbb00f921dcfc1a519c2d6aab589f506fb249d8398ee64505dde289ec7aa947817e2a18ede3e927c1f34245c13e6165b33f450e95236c709c2cb1413deee3a556389d1a3817d761edb19e579e86e104e27988c317a780576bb9dd24c607d4b24a50ba44"], 0x14}}, 0x0) (async) openat$cuse(0xffffffffffffff9c, &(0x7f0000000100), 0x2, 0x0) 12:34:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000080)={&(0x7f00000000c0)={0x14, 0x0, 0x300, 0x70bd29, 0x25dfdbfb}, 0x14}, 0x1, 0x0, 0x0, 0x8884}, 0x40000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000100)=ANY=[@ANYBLOB="14f7c9736a8f3200", @ANYRES16=0x0, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000080)={&(0x7f00000000c0)={0x14, 0x0, 0x300, 0x70bd29, 0x25dfdbfb}, 0x14}, 0x1, 0x0, 0x0, 0x8884}, 0x40000) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000100)=ANY=[@ANYBLOB="14f7c9736a8f3200", @ANYRES16=0x0, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) (async) [ 1052.373292] nbd: must specify a device to reconfigure [ 1052.385334] nbd: must specify a device to reconfigure [ 1052.413387] nbd: must specify a device to reconfigure 12:34:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100"], 0x20}}, 0x90) 12:34:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100"], 0x20}}, 0x90) [ 1052.431158] nbd: must specify a device to reconfigure [ 1052.449498] nbd: must specify a device to reconfigure [ 1052.467617] nbd: must specify a device to reconfigure [ 1052.488740] nbd: must specify a device to reconfigure [ 1052.510350] nbd: must specify a device to reconfigure [ 1052.516987] nbd: must specify a device to reconfigure [ 1052.525971] nbd: must specify a device to reconfigure [ 1052.531564] nbd: must specify a device to reconfigure [ 1052.536894] nbd: must specify a device to reconfigure [ 1052.543079] nbd: must specify a device to reconfigure [ 1052.548434] nbd: must specify a device to reconfigure [ 1052.556346] nbd: must specify a device to reconfigure [ 1052.561940] nbd: must specify a device to reconfigure [ 1052.567278] nbd: must specify a device to reconfigure [ 1052.573100] nbd: must specify a device to reconfigure [ 1052.578640] nbd: must specify a device to reconfigure [ 1052.584284] nbd: must specify a device to reconfigure [ 1052.590414] nbd: must specify a device to reconfigure [ 1052.596290] nbd: must specify a device to reconfigure [ 1052.601936] nbd: must specify a device to reconfigure [ 1052.607287] nbd: must specify a device to reconfigure [ 1052.612911] nbd: must specify a device to reconfigure [ 1052.618194] nbd: must specify a device to reconfigure [ 1052.623756] nbd: must specify a device to reconfigure [ 1052.629023] nbd: must specify a device to reconfigure [ 1052.634603] nbd: must specify a device to reconfigure [ 1052.639846] nbd: must specify a device to reconfigure [ 1052.645282] nbd: must specify a device to reconfigure [ 1052.650513] nbd: must specify a device to reconfigure [ 1052.656065] nbd: must specify a device to reconfigure [ 1052.661609] nbd: must specify a device to reconfigure [ 1052.666844] nbd: must specify a device to reconfigure [ 1052.672267] nbd: must specify a device to reconfigure [ 1052.677503] nbd: must specify a device to reconfigure [ 1052.682954] nbd: must specify a device to reconfigure [ 1052.688281] nbd: must specify a device to reconfigure [ 1052.693720] nbd: must specify a device to reconfigure [ 1052.698954] nbd: must specify a device to reconfigure [ 1052.704370] nbd: must specify a device to reconfigure [ 1052.709635] nbd: must specify a device to reconfigure [ 1052.715062] nbd: must specify a device to reconfigure [ 1052.720309] nbd: must specify a device to reconfigure [ 1052.725734] nbd: must specify a device to reconfigure [ 1052.730973] nbd: must specify a device to reconfigure [ 1052.736375] nbd: must specify a device to reconfigure [ 1052.741720] nbd: must specify a device to reconfigure [ 1052.746955] nbd: must specify a device to reconfigure [ 1052.752253] nbd: must specify a device to reconfigure [ 1052.757484] nbd: must specify a device to reconfigure [ 1052.762788] nbd: must specify a device to reconfigure [ 1052.768023] nbd: must specify a device to reconfigure [ 1052.773329] nbd: must specify a device to reconfigure [ 1052.778574] nbd: must specify a device to reconfigure [ 1052.783883] nbd: must specify a device to reconfigure [ 1052.789122] nbd: must specify a device to reconfigure [ 1052.794480] nbd: must specify a device to reconfigure [ 1052.799718] nbd: must specify a device to reconfigure [ 1052.805025] nbd: must specify a device to reconfigure 12:34:08 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000140)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="01020000000000000000033d3d334b594cd5b022230e70380b1f000000101808d3420c5e7d2b51da7f8244e000745b0fbf4b98f8fd041d282dca3cfb5df4a1761dd7ee88beb5eb43d0c0021a01f1"], 0x14}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="00082abd7000fbdbdf25020000000c00078008000100", @ANYRES32=r4, @ANYBLOB="75e1e072d73e0c0003000700"], 0x2c}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000050) 12:34:08 executing program 1: ioctl$SOUND_MIXER_READ_RECMASK(0xffffffffffffffff, 0x80044dfd, &(0x7f0000000040)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x800}]}, 0x20}}, 0x90) 12:34:08 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) r4 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NET_DM_CMD_STOP(r3, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x14, r4, 0x400, 0x70bd2c, 0x25dfdbfb, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x11}, 0x1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x14, r2, 0x1}, 0x14}, 0x1, 0x0, 0x0, 0x1}, 0x0) 12:34:08 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) r7 = bpf$ITER_CREATE(0x21, &(0x7f0000000040), 0x8) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x64, r2, 0x300, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0xfffffe95, 0x1, r7}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x11, 0xa, 'n\xdb\xb6W&\xac\xdd\x10\xa9\x7f\xe1\v\x97'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '!'}]}, 0x64}, 0x1, 0x0, 0x0, 0x20040899}, 0x80) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000000000000003"], 0x20}}, 0x90) 12:34:08 executing program 3: ioctl$SOUND_MIXER_READ_RECMASK(0xffffffffffffffff, 0x80044dfd, &(0x7f0000000040)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x800}]}, 0x20}}, 0x90) [ 1052.810262] nbd: must specify a device to reconfigure [ 1052.815579] nbd: must specify a device to reconfigure [ 1052.820808] nbd: must specify a device to reconfigure [ 1052.826098] nbd: must specify a device to reconfigure [ 1052.831422] nbd: must specify a device to reconfigure 12:34:08 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) (async, rerun: 32) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (rerun: 32) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) r7 = bpf$ITER_CREATE(0x21, &(0x7f0000000040), 0x8) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x64, r2, 0x300, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0xfffffe95, 0x1, r7}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x11, 0xa, 'n\xdb\xb6W&\xac\xdd\x10\xa9\x7f\xe1\v\x97'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '!'}]}, 0x64}, 0x1, 0x0, 0x0, 0x20040899}, 0x80) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100"], 0x20}}, 0x90) [ 1052.880386] nbd: must specify a device to reconfigure [ 1052.893622] nbd: must specify a device to reconfigure [ 1052.906162] nbd: must specify a device to reconfigure [ 1052.919680] nbd: must specify a device to reconfigure 12:34:08 executing program 1: ioctl$SOUND_MIXER_READ_RECMASK(0xffffffffffffffff, 0x80044dfd, &(0x7f0000000040)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x800}]}, 0x20}}, 0x90) ioctl$SOUND_MIXER_READ_RECMASK(0xffffffffffffffff, 0x80044dfd, &(0x7f0000000040)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x800}]}, 0x20}}, 0x90) (async) 12:34:08 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1, 0xfffffffd, 0x25dfdbfd}, 0x14}}, 0x0) r3 = syz_open_dev$audion(&(0x7f0000000000), 0x8000000000000000, 0x90000) ioctl$SOUND_MIXER_READ_RECMASK(r3, 0x80044dfd, &(0x7f0000000040)) 12:34:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100"], 0x20}}, 0x90) 12:34:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000000000000003"], 0x20}}, 0x90) [ 1052.937337] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. [ 1052.961662] nbd: must specify a device to reconfigure [ 1052.980194] nbd: must specify a device to reconfigure 12:34:08 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) (async) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) r7 = bpf$ITER_CREATE(0x21, &(0x7f0000000040), 0x8) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x64, r2, 0x300, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0xfffffe95, 0x1, r7}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x11, 0xa, 'n\xdb\xb6W&\xac\xdd\x10\xa9\x7f\xe1\v\x97'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '!'}]}, 0x64}, 0x1, 0x0, 0x0, 0x20040899}, 0x80) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:08 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async, rerun: 64) r4 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000080), 0xffffffffffffffff) (rerun: 64) sendmsg$NET_DM_CMD_STOP(r3, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x14, r4, 0x400, 0x70bd2c, 0x25dfdbfb, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x11}, 0x1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x14, r2, 0x1}, 0x14}, 0x1, 0x0, 0x0, 0x1}, 0x0) [ 1053.001148] nbd: must specify a device to reconfigure [ 1053.019046] nbd: must specify a device to reconfigure [ 1053.037323] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. 12:34:08 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) r2 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r2, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x44, r1, 0x1, 0xfffffffd, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8c}]}, 0x44}}, 0x0) 12:34:08 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) [ 1053.054875] nbd: must specify a device to reconfigure [ 1053.073001] nbd: must specify a device to reconfigure 12:34:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00', @ANYRES16=r2, @ANYBLOB="01"], 0x20}}, 0x90) [ 1053.110626] nbd: must specify a device to reconfigure 12:34:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000000000000003"], 0x20}}, 0x90) 12:34:08 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1, 0xfffffffd, 0x25dfdbfd}, 0x14}}, 0x0) r3 = syz_open_dev$audion(&(0x7f0000000000), 0x8000000000000000, 0x90000) ioctl$SOUND_MIXER_READ_RECMASK(r3, 0x80044dfd, &(0x7f0000000040)) 12:34:08 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) (async) 12:34:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00', @ANYRES16=r2, @ANYBLOB="01"], 0x20}}, 0x90) [ 1053.132889] nbd: must specify a device to reconfigure [ 1053.142713] nbd: must specify a device to reconfigure [ 1053.196167] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. [ 1053.224180] nbd: must specify a device to reconfigure 12:34:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="01"], 0x20}}, 0x90) 12:34:08 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) (async) r2 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r2, 0x0, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x44, r1, 0x1, 0xfffffffd, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8c}]}, 0x44}}, 0x0) 12:34:08 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1, 0xfffffffd, 0x25dfdbfd}, 0x14}}, 0x0) r3 = syz_open_dev$audion(&(0x7f0000000000), 0x8000000000000000, 0x90000) ioctl$SOUND_MIXER_READ_RECMASK(r3, 0x80044dfd, &(0x7f0000000040)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1, 0xfffffffd, 0x25dfdbfd}, 0x14}}, 0x0) (async) syz_open_dev$audion(&(0x7f0000000000), 0x8000000000000000, 0x90000) (async) ioctl$SOUND_MIXER_READ_RECMASK(r3, 0x80044dfd, &(0x7f0000000040)) (async) 12:34:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a"], 0x20}}, 0x90) [ 1053.247698] nbd: must specify a device to reconfigure [ 1053.259140] nbd: must specify a device to reconfigure [ 1053.270467] nbd: must specify a device to reconfigure [ 1053.286925] nbd: must specify a device to reconfigure 12:34:08 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async) r4 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NET_DM_CMD_STOP(r3, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x14, r4, 0x400, 0x70bd2c, 0x25dfdbfb, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x11}, 0x1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x14, r2, 0x1}, 0x14}, 0x1, 0x0, 0x0, 0x1}, 0x0) 12:34:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="01"], 0x20}}, 0x90) 12:34:08 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:08 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async, rerun: 32) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) (async, rerun: 64) r2 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (rerun: 64) sendmsg$L2TP_CMD_SESSION_CREATE(r2, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x44, r1, 0x1, 0xfffffffd, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8c}]}, 0x44}}, 0x0) 12:34:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a"], 0x20}}, 0x90) [ 1053.352264] nbd: must specify a device to reconfigure [ 1053.366697] nbd: must specify a device to reconfigure [ 1053.379504] nbd: must specify a device to reconfigure [ 1053.393120] nbd: must specify a device to reconfigure 12:34:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a"], 0x20}}, 0x90) 12:34:08 executing program 0: bpf$ITER_CREATE(0x21, &(0x7f0000000000), 0x8) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB='\n\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}, 0x1, 0x0, 0x0, 0x200000c1}, 0x0) 12:34:08 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x38, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}]}, 0x38}}, 0x90) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f0000000240)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x14, 0x0, 0x200, 0x70bd2c, 0x25dfdbff, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40000000}, 0x2400c001) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r6) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r5, @ANYBLOB="000834bd7000fcdbdf250300000008000a006e626400"], 0x1c}, 0x1, 0x0, 0x0, 0x4}, 0x4000008) [ 1053.422055] nbd: must specify a device to reconfigure [ 1053.439023] nbd: must specify a device to reconfigure 12:34:08 executing program 2: r0 = bpf$LINK_GET_FD_BY_ID(0x1e, &(0x7f0000000080), 0x4) bpf$ITER_CREATE(0x21, &(0x7f00000000c0)={r0}, 0x8) r1 = openat$random(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) ioctl$RNDCLEARPOOL(r1, 0x5206, &(0x7f0000000040)=0x6) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) [ 1053.480238] nbd: must specify a device to reconfigure 12:34:08 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) 12:34:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2], 0x20}}, 0x90) [ 1053.508179] nbd: must specify a device to reconfigure 12:34:08 executing program 0: bpf$ITER_CREATE(0x21, &(0x7f0000000000), 0x8) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB='\n\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}, 0x1, 0x0, 0x0, 0x200000c1}, 0x0) 12:34:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a"], 0x20}}, 0x90) [ 1053.542319] nbd: must specify a device to reconfigure 12:34:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000200), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14, r4, 0x0, 0x0, 0xfffffffd}, 0x14}, 0x1, 0x0, 0x0, 0x4c841}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r6) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x38, r7, 0x200, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}]}, 0x38}, 0x1, 0x0, 0x0, 0x804}, 0x50) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="140000006a53e9e47de9bbc5d79d7c3df0fcb24db02e32656efe3eba10c8bdd46829ddff362a950e9bd1c00600283627701ceded7e3d746e12a3ad5e63806a128f926c406ed288f00b457053f6bb815a32bbfddc3ae2534417a37556367f24a2ea8c39a1c87f0545c55591c278fe2b94ac16941b86318acdb314a5bdc0791754ca430f4880f4718b9ced5fd310f8f8fa1b4f44059cc05d802a87007466ef7516279690b73aa24c70684cc17ef614724b4b0b69490ba89df8612aea1b9ca6e05b87528bf904c8254f4e0d8f", @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) 12:34:08 executing program 2: r0 = bpf$LINK_GET_FD_BY_ID(0x1e, &(0x7f0000000080), 0x4) bpf$ITER_CREATE(0x21, &(0x7f00000000c0)={r0}, 0x8) r1 = openat$random(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) ioctl$RNDCLEARPOOL(r1, 0x5206, &(0x7f0000000040)=0x6) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) bpf$LINK_GET_FD_BY_ID(0x1e, &(0x7f0000000080), 0x4) (async) bpf$ITER_CREATE(0x21, &(0x7f00000000c0)={r0}, 0x8) (async) openat$random(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) (async) ioctl$RNDCLEARPOOL(r1, 0x5206, &(0x7f0000000040)=0x6) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) (async) 12:34:08 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x38, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}]}, 0x38}}, 0x90) (async, rerun: 32) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f0000000240)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x14, 0x0, 0x200, 0x70bd2c, 0x25dfdbff, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40000000}, 0x2400c001) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r6) (async) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r5, @ANYBLOB="000834bd7000fcdbdf250300000008000a006e626400"], 0x1c}, 0x1, 0x0, 0x0, 0x4}, 0x4000008) [ 1053.570197] block nbd1: not configured, cannot reconfigure [ 1053.579558] nbd: must specify a device to reconfigure [ 1053.586683] nbd: must specify a device to reconfigure 12:34:08 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) 12:34:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) [ 1053.616154] nbd: must specify a device to reconfigure 12:34:09 executing program 0: bpf$ITER_CREATE(0x21, &(0x7f0000000000), 0x8) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB='\n\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}, 0x1, 0x0, 0x0, 0x200000c1}, 0x0) [ 1053.656152] nbd: must specify a device to reconfigure 12:34:09 executing program 2: r0 = bpf$LINK_GET_FD_BY_ID(0x1e, &(0x7f0000000080), 0x4) bpf$ITER_CREATE(0x21, &(0x7f00000000c0)={r0}, 0x8) r1 = openat$random(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) ioctl$RNDCLEARPOOL(r1, 0x5206, &(0x7f0000000040)=0x6) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) [ 1053.681282] nbd: must specify a device to reconfigure [ 1053.686616] nbd: must specify a device to reconfigure [ 1053.709323] nbd: must specify a device to reconfigure 12:34:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a"], 0x20}}, 0x90) 12:34:09 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2], 0x20}}, 0x90) 12:34:09 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) [ 1053.727222] block nbd3: not configured, cannot reconfigure [ 1053.735272] nbd: must specify a device to reconfigure [ 1053.748304] nbd: must specify a device to reconfigure [ 1053.763297] block nbd1: not configured, cannot reconfigure 12:34:09 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) bpf$ITER_CREATE(0x21, &(0x7f0000000080), 0x8) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB='L\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000feffffff030000000c00080076080000000012ed9145ac0695b93f000000000000000c000400000800000000000008000a006e626400"], 0x4c}}, 0x0) [ 1053.785633] block nbd1: not configured, cannot reconfigure [ 1053.805732] block nbd1: not configured, cannot reconfigure [ 1053.812792] nbd: must specify a device to reconfigure [ 1053.829696] nbd: must specify a device to reconfigure 12:34:09 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) 12:34:09 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0xffffffffffffff07, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYRESHEX=r0, @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) 12:34:09 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) r4 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_STOP(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r4, 0x30, 0x70bd26, 0x25dfdbfb, {}, ["", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4000}, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) r7 = syz_open_dev$audion(&(0x7f00000001c0), 0x5, 0x202000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000200)={0xffffffffffffffff}) r9 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r9, 0x0, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000002c0)={0xffffffffffffffff}) pipe2$watch_queue(&(0x7f0000000380)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000004c0)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000480)={&(0x7f0000000780)=ANY=[@ANYBLOB="cf491ebebf5aaae0627e2ad529ef686bdc92588442c008957c1ef5cb13c3ac8aa4afc04cfff19bd5a7d9291caf0f949d6fd65ef086dce70eb867a13e4ec2", @ANYRES16=r6, @ANYBLOB="01002bbd7000fcdbdf25020000005400078008000100", @ANYRES32=r7, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="080c790e9bf0226c250d000100c3b86a1810000000000700000032", @ANYRES32=r8, @ANYBLOB="08000100", @ANYRES32=r9, @ANYBLOB="08000100", @ANYRES32=r10, @ANYBLOB="08000100", @ANYRES32=r11, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r12, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00050001010000000000000c00030006000000000000000c0005000500000000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x40000}, 0x4040891) [ 1053.837633] nbd: must specify a device to reconfigure [ 1053.844576] block nbd1: not configured, cannot reconfigure [ 1053.864125] block nbd1: not configured, cannot reconfigure [ 1053.869939] block nbd1: not configured, cannot reconfigure [ 1053.879395] block nbd1: not configured, cannot reconfigure [ 1053.896201] block nbd1: not configured, cannot reconfigure [ 1053.906463] block nbd1: not configured, cannot reconfigure [ 1053.917563] netlink: 44 bytes leftover after parsing attributes in process `syz-executor.3'. [ 1053.931708] nbd: must specify a device to reconfigure [ 1053.937795] block nbd1: not configured, cannot reconfigure [ 1053.946256] nbd: must specify a device to reconfigure [ 1053.952188] nbd: must specify a device to reconfigure [ 1053.959760] block nbd1: not configured, cannot reconfigure [ 1053.982409] block nbd1: not configured, cannot reconfigure [ 1053.988762] block nbd1: not configured, cannot reconfigure [ 1053.997382] block nbd1: not configured, cannot reconfigure [ 1054.005311] block nbd1: not configured, cannot reconfigure [ 1054.012816] block nbd1: not configured, cannot reconfigure [ 1054.018577] block nbd1: not configured, cannot reconfigure [ 1054.027334] block nbd1: not configured, cannot reconfigure [ 1054.034555] block nbd1: not configured, cannot reconfigure [ 1054.040525] block nbd1: not configured, cannot reconfigure [ 1054.050153] block nbd1: not configured, cannot reconfigure [ 1054.056351] block nbd1: not configured, cannot reconfigure [ 1054.062388] block nbd1: not configured, cannot reconfigure [ 1054.068062] block nbd1: not configured, cannot reconfigure [ 1054.073830] block nbd1: not configured, cannot reconfigure [ 1054.079524] block nbd1: not configured, cannot reconfigure [ 1054.085396] block nbd1: not configured, cannot reconfigure [ 1054.091067] block nbd1: not configured, cannot reconfigure 12:34:09 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x38, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}]}, 0x38}}, 0x90) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f0000000240)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x14, 0x0, 0x200, 0x70bd2c, 0x25dfdbff, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40000000}, 0x2400c001) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r6) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r5, @ANYBLOB="000834bd7000fcdbdf250300000008000a006e626400"], 0x1c}, 0x1, 0x0, 0x0, 0x4}, 0x4000008) 12:34:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a"], 0x20}}, 0x90) 12:34:09 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0xffffffffffffff07, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYRESHEX=r0, @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) 12:34:09 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r2) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) (async) 12:34:09 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000200)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x24, r6, 0x2, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ','}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x24}, 0x1, 0x0, 0x0, 0x200000c4}, 0x20004010) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000280)={0xffffffffffffffff}) r10 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r10, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000002c0)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000400)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000003c0)={&(0x7f0000000300)={0xa0, 0x0, 0xa13, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}, {0x8, 0x1, r11}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1c}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xe38}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}]}, 0xa0}, 0x1, 0x0, 0x0, 0xd5be6e1c6b5cf52f}, 0x8000) sendmsg$NET_DM_CMD_STOP(r7, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r8, 0x20, 0x70bd2d, 0x25dfdbfe, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x814}, 0x0) 12:34:09 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) r4 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_STOP(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r4, 0x30, 0x70bd26, 0x25dfdbfb, {}, ["", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4000}, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) r7 = syz_open_dev$audion(&(0x7f00000001c0), 0x5, 0x202000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000200)={0xffffffffffffffff}) r9 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r9, 0x0, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000002c0)={0xffffffffffffffff}) pipe2$watch_queue(&(0x7f0000000380)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000004c0)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000480)={&(0x7f0000000780)=ANY=[@ANYBLOB="cf491ebebf5aaae0627e2ad529ef686bdc92588442c008957c1ef5cb13c3ac8aa4afc04cfff19bd5a7d9291caf0f949d6fd65ef086dce70eb867a13e4ec2", @ANYRES16=r6, @ANYBLOB="01002bbd7000fcdbdf25020000005400078008000100", @ANYRES32=r7, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="080c790e9bf0226c250d000100c3b86a1810000000000700000032", @ANYRES32=r8, @ANYBLOB="08000100", @ANYRES32=r9, @ANYBLOB="08000100", @ANYRES32=r10, @ANYBLOB="08000100", @ANYRES32=r11, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r12, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00050001010000000000000c00030006000000000000000c0005000500000000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x40000}, 0x4040891) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) (async) sendmsg$NET_DM_CMD_STOP(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r4, 0x30, 0x70bd26, 0x25dfdbfb, {}, ["", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4000}, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) (async) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) syz_open_dev$audion(&(0x7f00000001c0), 0x5, 0x202000) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000200)) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r9, 0x0, 0x0) (async) pipe2$watch_queue(&(0x7f0000000240), 0x80) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000002c0)) (async) pipe2$watch_queue(&(0x7f0000000380), 0x80) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000004c0)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000480)={&(0x7f0000000780)=ANY=[@ANYBLOB="cf491ebebf5aaae0627e2ad529ef686bdc92588442c008957c1ef5cb13c3ac8aa4afc04cfff19bd5a7d9291caf0f949d6fd65ef086dce70eb867a13e4ec2", @ANYRES16=r6, @ANYBLOB="01002bbd7000fcdbdf25020000005400078008000100", @ANYRES32=r7, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="080c790e9bf0226c250d000100c3b86a1810000000000700000032", @ANYRES32=r8, @ANYBLOB="08000100", @ANYRES32=r9, @ANYBLOB="08000100", @ANYRES32=r10, @ANYBLOB="08000100", @ANYRES32=r11, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r12, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00050001010000000000000c00030006000000000000000c0005000500000000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x40000}, 0x4040891) (async) [ 1054.096832] block nbd1: not configured, cannot reconfigure [ 1054.102608] block nbd1: not configured, cannot reconfigure 12:34:09 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0xffffffffffffff07, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYRESHEX=r0, @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) 12:34:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a"], 0x20}}, 0x90) [ 1054.145028] nbd: must specify a device to reconfigure [ 1054.159113] nbd: must specify a device to reconfigure [ 1054.180882] nbd: must specify a device to reconfigure 12:34:09 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async, rerun: 64) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async, rerun: 64) r4 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_STOP(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r4, 0x30, 0x70bd26, 0x25dfdbfb, {}, ["", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4000}, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) r7 = syz_open_dev$audion(&(0x7f00000001c0), 0x5, 0x202000) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000200)={0xffffffffffffffff}) r9 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r9, 0x0, 0x0) (async, rerun: 64) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) (rerun: 64) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000002c0)={0xffffffffffffffff}) (async) pipe2$watch_queue(&(0x7f0000000380)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000004c0)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000480)={&(0x7f0000000780)=ANY=[@ANYBLOB="cf491ebebf5aaae0627e2ad529ef686bdc92588442c008957c1ef5cb13c3ac8aa4afc04cfff19bd5a7d9291caf0f949d6fd65ef086dce70eb867a13e4ec2", @ANYRES16=r6, @ANYBLOB="01002bbd7000fcdbdf25020000005400078008000100", @ANYRES32=r7, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="080c790e9bf0226c250d000100c3b86a1810000000000700000032", @ANYRES32=r8, @ANYBLOB="08000100", @ANYRES32=r9, @ANYBLOB="08000100", @ANYRES32=r10, @ANYBLOB="08000100", @ANYRES32=r11, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r12, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00050001010000000000000c00030006000000000000000c0005000500000000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x40000}, 0x4040891) 12:34:09 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r2) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) [ 1054.196236] nbd: must specify a device to reconfigure [ 1054.201540] nbd: must specify a device to reconfigure [ 1054.213643] nbd: must specify a device to reconfigure 12:34:09 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x400, 0x0, 0x25dfdbfb}, 0x14}, 0x1, 0x0, 0x0, 0x440d0}, 0x0) 12:34:09 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, 0x0}, 0x90) [ 1054.237250] block nbd3: not configured, cannot reconfigure [ 1054.257550] block nbd1: not configured, cannot reconfigure 12:34:09 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) r3 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r3, 0x4, 0x70bd25, 0x25dfdbfe, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40}, 0x4000000) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:09 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x400, 0x0, 0x25dfdbfb}, 0x14}, 0x1, 0x0, 0x0, 0x440d0}, 0x0) [ 1054.284887] nbd: must specify a device to reconfigure 12:34:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a00"], 0x20}}, 0x90) 12:34:09 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB='Fa 6', @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) [ 1054.321289] nbd: must specify a device to reconfigure 12:34:09 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a"], 0x20}}, 0x90) 12:34:09 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x400, 0x0, 0x25dfdbfb}, 0x14}, 0x1, 0x0, 0x0, 0x440d0}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x400, 0x0, 0x25dfdbfb}, 0x14}, 0x1, 0x0, 0x0, 0x440d0}, 0x0) (async) 12:34:09 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x1c, r1, 0x100, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4}, 0x40) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="ac09a0895a6b453da93738bda92c41fa03143724458401cc560dae685e715fde9ab1a557d9fdb795fd421d245bef90326ffe57b04dc47e04ae20f76387e575e6485091a26dae84a93b3b99e18fead299d1f7747d0c69bdd954d660c95a9b4cb96402d079e7150d57d71eb1c4455554433a49472b272a06bd639d5384efc1e6689bab67ce06dd5e68c3cb27e485a5abf3cbeb3360ba9235ab6921a91e8fd99da52e62e91a270540ffcb704dc68f6b5a2653a0a7c70c2ead5f38e7b3d7ac5a961af92793f0f00220b146d0d4f25235f655e0125aaf89b3b8e06e49fc", @ANYRES16=r1, @ANYBLOB="0100000000000000000003000000"], 0x14}, 0x1, 0x0, 0x0, 0x40000000}, 0x0) 12:34:09 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) (async) r3 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r3, 0x4, 0x70bd25, 0x25dfdbfe, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40}, 0x4000000) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:09 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB='Fa 6', @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) [ 1054.390242] nbd: must specify a device to reconfigure 12:34:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a00"], 0x20}}, 0x90) 12:34:09 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x1c, r1, 0x100, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4}, 0x40) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="ac09a0895a6b453da93738bda92c41fa03143724458401cc560dae685e715fde9ab1a557d9fdb795fd421d245bef90326ffe57b04dc47e04ae20f76387e575e6485091a26dae84a93b3b99e18fead299d1f7747d0c69bdd954d660c95a9b4cb96402d079e7150d57d71eb1c4455554433a49472b272a06bd639d5384efc1e6689bab67ce06dd5e68c3cb27e485a5abf3cbeb3360ba9235ab6921a91e8fd99da52e62e91a270540ffcb704dc68f6b5a2653a0a7c70c2ead5f38e7b3d7ac5a961af92793f0f00220b146d0d4f25235f655e0125aaf89b3b8e06e49fc", @ANYRES16=r1, @ANYBLOB="0100000000000000000003000000"], 0x14}, 0x1, 0x0, 0x0, 0x40000000}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x1c, r1, 0x100, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4}, 0x40) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="ac09a0895a6b453da93738bda92c41fa03143724458401cc560dae685e715fde9ab1a557d9fdb795fd421d245bef90326ffe57b04dc47e04ae20f76387e575e6485091a26dae84a93b3b99e18fead299d1f7747d0c69bdd954d660c95a9b4cb96402d079e7150d57d71eb1c4455554433a49472b272a06bd639d5384efc1e6689bab67ce06dd5e68c3cb27e485a5abf3cbeb3360ba9235ab6921a91e8fd99da52e62e91a270540ffcb704dc68f6b5a2653a0a7c70c2ead5f38e7b3d7ac5a961af92793f0f00220b146d0d4f25235f655e0125aaf89b3b8e06e49fc", @ANYRES16=r1, @ANYBLOB="0100000000000000000003000000"], 0x14}, 0x1, 0x0, 0x0, 0x40000000}, 0x0) (async) 12:34:09 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a00"], 0x20}}, 0x90) 12:34:09 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB='Fa 6', @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) [ 1054.436417] nbd: must specify a device to reconfigure [ 1054.455670] nbd: must specify a device to reconfigure 12:34:09 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) (async) r3 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r3, 0x4, 0x70bd25, 0x25dfdbfe, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40}, 0x4000000) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:09 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="010000007f000080000003000000"], 0x14}}, 0x0) 12:34:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a00"], 0x20}}, 0x90) 12:34:09 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a"], 0x20}}, 0x90) 12:34:09 executing program 0: r0 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_GET(r1, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x30, r2, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp6=r3}, @L2TP_ATTR_COOKIE={0xc}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x30}}, 0x0) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x1c, r2, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x7}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24000080}, 0x8085) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r6, @ANYBLOB='\x00'/14], 0x14}}, 0x0) [ 1054.539551] nbd: must specify a device to reconfigure [ 1054.548029] nbd: must specify a device to reconfigure [ 1054.563625] nbd: must specify a device to reconfigure 12:34:09 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="010000007f000080000003000000"], 0x14}}, 0x0) 12:34:09 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x1c, r1, 0x100, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4}, 0x40) (async, rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async, rerun: 64) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="ac09a0895a6b453da93738bda92c41fa03143724458401cc560dae685e715fde9ab1a557d9fdb795fd421d245bef90326ffe57b04dc47e04ae20f76387e575e6485091a26dae84a93b3b99e18fead299d1f7747d0c69bdd954d660c95a9b4cb96402d079e7150d57d71eb1c4455554433a49472b272a06bd639d5384efc1e6689bab67ce06dd5e68c3cb27e485a5abf3cbeb3360ba9235ab6921a91e8fd99da52e62e91a270540ffcb704dc68f6b5a2653a0a7c70c2ead5f38e7b3d7ac5a961af92793f0f00220b146d0d4f25235f655e0125aaf89b3b8e06e49fc", @ANYRES16=r1, @ANYBLOB="0100000000000000000003000000"], 0x14}, 0x1, 0x0, 0x0, 0x40000000}, 0x0) 12:34:09 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) ioctl$KDSETMODE(0xffffffffffffffff, 0x4b3a, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x40, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x157}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xd6b8}]}, 0x40}}, 0x90) [ 1054.597496] nbd: must specify a device to reconfigure 12:34:10 executing program 0: r0 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) (async, rerun: 32) r1 = socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_GET(r1, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x30, r2, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp6=r3}, @L2TP_ATTR_COOKIE={0xc}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x30}}, 0x0) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x1c, r2, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x7}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24000080}, 0x8085) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r6, @ANYBLOB='\x00'/14], 0x14}}, 0x0) [ 1054.641128] nbd: must specify a device to reconfigure 12:34:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="010000007f000080000003000000"], 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="010000007f000080000003000000"], 0x14}}, 0x0) (async) 12:34:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) [ 1054.666631] nbd: must specify a device to reconfigure [ 1054.676029] nbd: must specify a device to reconfigure 12:34:10 executing program 3: r0 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_GET(r1, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x30, r2, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp6=r3}, @L2TP_ATTR_COOKIE={0xc}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x30}}, 0x0) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x1c, r2, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x7}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24000080}, 0x8085) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r6, @ANYBLOB='\x00'/14], 0x14}}, 0x0) 12:34:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) ioctl$KDSETMODE(0xffffffffffffffff, 0x4b3a, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x40, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x157}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xd6b8}]}, 0x40}}, 0x90) 12:34:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) [ 1054.709847] block nbd1: not configured, cannot reconfigure [ 1054.739453] nbd: must specify a device to reconfigure 12:34:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)={0x20, r2, 0x1, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4000800000000000}]}, 0x20}}, 0x20000008) 12:34:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r0) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$urandom(0xffffffffffffff9c, &(0x7f0000000040), 0x52002, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) [ 1054.768480] nbd: must specify a device to reconfigure 12:34:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010023d5809ac7e67529d905000000030000000c0008000000000000000000a7183fa5fdb6a31c564a266adc2e4bd6141d045f5038ed1f8620da411da7c9848f89f525cae3bcb999e75ea121623e349bcb0ce94eeeb20651b4d6b73b75ae6a2b80de0c716f6019dcb77d2f82b25b3c9f89ecbaefd609e39fb2449bc32b03ac6cb6bc2d3e3fa1fe661a936c1ce41b15f003bf834079fb948b4d4f479062cd48ba9c9de2b01dc91afaaa0c52cd7415e9cce91148baab815dd9cda5d5ce61f2472561bbc029b6"], 0x20}}, 0x90) 12:34:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) ioctl$KDSETMODE(0xffffffffffffffff, 0x4b3a, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x40, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x157}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xd6b8}]}, 0x40}}, 0x90) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) ioctl$KDSETMODE(0xffffffffffffffff, 0x4b3a, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x40, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x157}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xd6b8}]}, 0x40}}, 0x90) (async) 12:34:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) [ 1054.838108] nbd: must specify a device to reconfigure 12:34:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)={0x20, r2, 0x1, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4000800000000000}]}, 0x20}}, 0x20000008) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)={0x20, r2, 0x1, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4000800000000000}]}, 0x20}}, 0x20000008) (async) 12:34:10 executing program 0: r0 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) (async) r1 = socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) (async, rerun: 64) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (rerun: 64) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) (async, rerun: 64) sendmsg$L2TP_CMD_SESSION_GET(r1, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x30, r2, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp6=r3}, @L2TP_ATTR_COOKIE={0xc}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x30}}, 0x0) (rerun: 64) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x1c, r2, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x7}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24000080}, 0x8085) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r6, @ANYBLOB='\x00'/14], 0x14}}, 0x0) 12:34:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r0) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$urandom(0xffffffffffffff9c, &(0x7f0000000040), 0x52002, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) 12:34:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) 12:34:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) pipe2$watch_queue(&(0x7f0000000000), 0x80) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000180)={0x14, r2, 0x1, 0x70bd26, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x24048850}, 0x0) 12:34:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000000c0008000000000000001010"], 0x20}}, 0x90) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), 0xffffffffffffffff) [ 1054.910224] block nbd1: not configured, cannot reconfigure [ 1054.930289] block nbd1: not configured, cannot reconfigure [ 1054.952968] nbd: must specify a device to reconfigure 12:34:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r0) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$urandom(0xffffffffffffff9c, &(0x7f0000000040), 0x52002, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r0) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$urandom(0xffffffffffffff9c, &(0x7f0000000040), 0x52002, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) [ 1054.972324] nbd: must specify a device to reconfigure 12:34:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)={0x20, r2, 0x1, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4000800000000000}]}, 0x20}}, 0x20000008) 12:34:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) [ 1055.028340] nbd: must specify a device to reconfigure 12:34:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000000c0008000000000000001010"], 0x20}}, 0x90) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000000c0008000000000000001010"], 0x20}}, 0x90) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), 0xffffffffffffffff) (async) [ 1055.055226] nbd: must specify a device to reconfigure 12:34:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a0008000000000000800000c6a4ed53dba4884d74f6b046aef24d5049f6e243109f35df6cf93216b06c8467a2b439ebbd5d59efee0bde8cb5"], 0x20}}, 0x90) 12:34:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x38, r2, 0x8, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x37c9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x102}]}, 0x38}, 0x1, 0x0, 0x0, 0xc4}, 0x40000c0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) [ 1055.117679] nbd: must specify a device to reconfigure [ 1055.139241] nbd: must specify a device to reconfigure 12:34:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) openat$binderfs(0xffffffffffffff9c, &(0x7f0000000000)='./binderfs/custom1\x00', 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x400, 0x70bd2c}, 0x19}}, 0x0) 12:34:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a0008000000000000800000c6a4ed53dba4884d74f6b046aef24d5049f6e243109f35df6cf93216b06c8467a2b439ebbd5d59efee0bde8cb5"], 0x20}}, 0x90) 12:34:10 executing program 0: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r0, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x30, r1, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp}, @L2TP_ATTR_COOKIE={0xc}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x30}}, 0x0) sendmsg$L2TP_CMD_SESSION_MODIFY(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000241}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)=ANY=[@ANYBLOB="c00c0067", @ANYRES16=r1, @ANYBLOB="00012dbd7000fedbdf250700000008000b000300000014002000fe8000000000000000000000000000aa"], 0x30}, 0x1, 0x0, 0x0, 0x4801}, 0x40000) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000140), r0) sendmsg$L2TP_CMD_TUNNEL_CREATE(r0, &(0x7f0000000340)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)={0x24, r2, 0x2, 0x70bd28, 0x25dfdbfd, {}, [@L2TP_ATTR_PW_TYPE={0x6}, @L2TP_ATTR_UDP_SPORT={0x6, 0x1a, 0x4e23}]}, 0x24}, 0x1, 0x0, 0x0, 0x40000}, 0x40080) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r5, 0x1}, 0x14}}, 0x0) [ 1055.166037] nbd: must specify a device to reconfigure [ 1055.178035] nbd: must specify a device to reconfigure 12:34:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async, rerun: 64) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x38, r2, 0x8, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x37c9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x102}]}, 0x38}, 0x1, 0x0, 0x0, 0xc4}, 0x40000c0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) 12:34:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000000c0008000000000000001010"], 0x20}}, 0x90) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), 0xffffffffffffffff) 12:34:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) 12:34:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) 12:34:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) openat$binderfs(0xffffffffffffff9c, &(0x7f0000000000)='./binderfs/custom1\x00', 0x0, 0x0) (async, rerun: 32) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x400, 0x70bd2c}, 0x19}}, 0x0) (rerun: 32) [ 1055.278938] block nbd2: not configured, cannot reconfigure [ 1055.297640] nbd: must specify a device to reconfigure 12:34:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r3, @ANYBLOB="000000002e000c0008ab00000000000000000000130528"], 0x20}}, 0x90) r4 = syz_open_pts(0xffffffffffffffff, 0x101) ioctl$TIOCSWINSZ(r4, 0x5414, &(0x7f0000000040)={0x8001, 0x1, 0xff, 0x1}) 12:34:10 executing program 0: r0 = socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r0, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x30, r1, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp}, @L2TP_ATTR_COOKIE={0xc}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x30}}, 0x0) (async) sendmsg$L2TP_CMD_SESSION_MODIFY(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000241}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)=ANY=[@ANYBLOB="c00c0067", @ANYRES16=r1, @ANYBLOB="00012dbd7000fedbdf250700000008000b000300000014002000fe8000000000000000000000000000aa"], 0x30}, 0x1, 0x0, 0x0, 0x4801}, 0x40000) (async) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000140), r0) sendmsg$L2TP_CMD_TUNNEL_CREATE(r0, &(0x7f0000000340)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)={0x24, r2, 0x2, 0x70bd28, 0x25dfdbfd, {}, [@L2TP_ATTR_PW_TYPE={0x6}, @L2TP_ATTR_UDP_SPORT={0x6, 0x1a, 0x4e23}]}, 0x24}, 0x1, 0x0, 0x0, 0x40000}, 0x40080) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r5, 0x1}, 0x14}}, 0x0) 12:34:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x38, r2, 0x8, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x37c9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x102}]}, 0x38}, 0x1, 0x0, 0x0, 0xc4}, 0x40000c0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) [ 1055.320879] nbd: must specify a device to reconfigure 12:34:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) 12:34:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x38, r2, 0x8, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x37c9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x102}]}, 0x38}, 0x1, 0x0, 0x0, 0xc4}, 0x40000c0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x38, r2, 0x8, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x37c9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x102}]}, 0x38}, 0x1, 0x0, 0x0, 0xc4}, 0x40000c0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (async) 12:34:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r3, @ANYBLOB="000000002e000c0008ab00000000000000000000130528"], 0x20}}, 0x90) r4 = syz_open_pts(0xffffffffffffffff, 0x101) ioctl$TIOCSWINSZ(r4, 0x5414, &(0x7f0000000040)={0x8001, 0x1, 0xff, 0x1}) 12:34:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) 12:34:10 executing program 0: r0 = socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r0, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x30, r1, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp}, @L2TP_ATTR_COOKIE={0xc}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x30}}, 0x0) sendmsg$L2TP_CMD_SESSION_MODIFY(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000241}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)=ANY=[@ANYBLOB="c00c0067", @ANYRES16=r1, @ANYBLOB="00012dbd7000fedbdf250700000008000b000300000014002000fe8000000000000000000000000000aa"], 0x30}, 0x1, 0x0, 0x0, 0x4801}, 0x40000) (async) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000140), r0) sendmsg$L2TP_CMD_TUNNEL_CREATE(r0, &(0x7f0000000340)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)={0x24, r2, 0x2, 0x70bd28, 0x25dfdbfd, {}, [@L2TP_ATTR_PW_TYPE={0x6}, @L2TP_ATTR_UDP_SPORT={0x6, 0x1a, 0x4e23}]}, 0x24}, 0x1, 0x0, 0x0, 0x40000}, 0x40080) (async, rerun: 32) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r5, 0x1}, 0x14}}, 0x0) 12:34:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) openat$binderfs(0xffffffffffffff9c, &(0x7f0000000000)='./binderfs/custom1\x00', 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x400, 0x70bd2c}, 0x19}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) openat$binderfs(0xffffffffffffff9c, &(0x7f0000000000)='./binderfs/custom1\x00', 0x0, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x400, 0x70bd2c}, 0x19}}, 0x0) (async) [ 1055.425953] nbd: must specify a device to reconfigure [ 1055.439834] nbd: must specify a device to reconfigure 12:34:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r3, @ANYBLOB="000000002e000c0008ab00000000000000000000130528"], 0x20}}, 0x90) (async, rerun: 64) r4 = syz_open_pts(0xffffffffffffffff, 0x101) (rerun: 64) ioctl$TIOCSWINSZ(r4, 0x5414, &(0x7f0000000040)={0x8001, 0x1, 0xff, 0x1}) 12:34:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r3, @ANYBLOB="000000002e000c0008ab00000000000000000000130528"], 0x20}}, 0x90) r4 = syz_open_pts(0xffffffffffffffff, 0x101) ioctl$TIOCSWINSZ(r4, 0x5414, &(0x7f0000000040)={0x8001, 0x1, 0xff, 0x1}) [ 1055.474778] nbd: must specify a device to reconfigure 12:34:10 executing program 5: ioctl$TIOCSWINSZ(0xffffffffffffffff, 0x5414, &(0x7f0000000000)={0x1, 0x1, 0x5, 0xfa60}) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000000c0)=ANY=[@ANYRESOCT=r0, @ANYRES16=r2, @ANYBLOB="01000000000000000000030000000c3b20a4970200a903d041faccff8d0008000000000000000000"], 0x20}}, 0x4094) 12:34:10 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r3, 0x100, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x5}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x34}}, 0x1800) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) 12:34:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) [ 1055.496394] block nbd2: not configured, cannot reconfigure [ 1055.518095] nbd: must specify a device to reconfigure 12:34:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x38, 0x0, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x971}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7f}]}, 0x38}, 0x1, 0x0, 0x0, 0x20044810}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000380)={0x38, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x1a, 0xa, 'U~\xbe\xbe\xc1\xec\xb8\xfe\xf5B\xf5\xd5\x825(A\x8c\x99\xde~\xc8\xc2'}]}, 0x38}}, 0x0) bpf$ITER_CREATE(0x21, &(0x7f0000000140), 0x8) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) r7 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r7, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000280)={&(0x7f0000000480)=ANY=[], 0x9c}, 0x1, 0x0, 0x0, 0x8000}, 0x44084) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000440), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x44, r8, 0x1, 0x0, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_BACKEND_IDENTIFIER={0xb, 0xa, '\xf5-+:W\\%'}]}, 0x44}, 0x1, 0x0, 0x0, 0x2004}, 0x800) 12:34:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}, 0x1, 0x0, 0x0, 0x10000}, 0x0) sched_setattr(0x0, &(0x7f0000000000)={0x38, 0x5, 0x10000000, 0x1, 0x39, 0x170a, 0x9e5b, 0x1ff, 0x7, 0x3}, 0x0) 12:34:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000000c0)=ANY=[@ANYRESOCT=r0, @ANYRES16=r2, @ANYBLOB="01000000000000000000030000000c3b20a4970200a903d041faccff8d0008000000000000000000"], 0x20}}, 0x4094) [ 1055.600720] nbd: must specify a device to reconfigure 12:34:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) 12:34:11 executing program 5: ioctl$TIOCSWINSZ(0xffffffffffffffff, 0x5414, &(0x7f0000000000)={0x1, 0x1, 0x5, 0xfa60}) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) ioctl$TIOCSWINSZ(0xffffffffffffffff, 0x5414, &(0x7f0000000000)={0x1, 0x1, 0x5, 0xfa60}) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (async) [ 1055.623962] nbd: must specify a device to reconfigure 12:34:11 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r3, 0x100, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x5}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x34}}, 0x1800) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) 12:34:11 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000000c0)=ANY=[@ANYRESOCT=r0, @ANYRES16=r2, @ANYBLOB="01000000000000000000030000000c3b20a4970200a903d041faccff8d0008000000000000000000"], 0x20}}, 0x4094) [ 1055.655451] nbd: must specify a device to reconfigure 12:34:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}, 0x1, 0x0, 0x0, 0x10000}, 0x0) sched_setattr(0x0, &(0x7f0000000000)={0x38, 0x5, 0x10000000, 0x1, 0x39, 0x170a, 0x9e5b, 0x1ff, 0x7, 0x3}, 0x0) 12:34:11 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) 12:34:11 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={0x0, 0x20}}, 0x90) [ 1055.691550] block nbd3: not configured, cannot reconfigure [ 1055.699820] nbd: must specify a device to reconfigure [ 1055.719830] nbd: must specify a device to reconfigure [ 1055.732323] nbd: must specify a device to reconfigure 12:34:11 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r3, 0x100, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x5}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x34}}, 0x1800) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) 12:34:11 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="00042dbd7000fbdbdf25050000000c0004000500000000000000"], 0x20}, 0x1, 0x0, 0x0, 0x800}, 0x40080) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000001c0)={&(0x7f0000000240)=ANY=[@ANYBLOB="300000ea5f5336a87954bb", @ANYRES16=r4, @ANYBLOB="0000fbdbdf2505e3ff000c0004000500000000000000"], 0x20}, 0x1, 0x0, 0x0, 0x20004000}, 0x24000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000280)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000100000000000030000000c000828919ac500000000000b4b929a6318a609dd670a009b34b06561003eec838a57bfe911a94f3ef069efe340e77c5b227ef4ee0ec91ab936700cd9676333b0ffd8911df4477b64155914dda858e619274e1f065e7b688cd7d543411e5abae3288fe060c64ac030dd1d52f09b665a51da395c023b43545d7f79149daf6cf3b5154b23b18f8e8ad61e882be187dca99f5a01daa8d1a3f66a8d2821ce5c3dd0b023175a1749e4fc808dd99a35424b50d99ea3c5feafbce62de33295c7f815c11a7bd34152e9b318e3884b8ec5a638e9e178"], 0x20}}, 0x90) 12:34:11 executing program 5: ioctl$TIOCSWINSZ(0xffffffffffffffff, 0x5414, &(0x7f0000000000)={0x1, 0x1, 0x5, 0xfa60}) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) [ 1055.755519] nbd: must specify a device to reconfigure 12:34:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}, 0x1, 0x0, 0x0, 0x10000}, 0x0) sched_setattr(0x0, &(0x7f0000000000)={0x38, 0x5, 0x10000000, 0x1, 0x39, 0x170a, 0x9e5b, 0x1ff, 0x7, 0x3}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}, 0x1, 0x0, 0x0, 0x10000}, 0x0) (async) sched_setattr(0x0, &(0x7f0000000000)={0x38, 0x5, 0x10000000, 0x1, 0x39, 0x170a, 0x9e5b, 0x1ff, 0x7, 0x3}, 0x0) (async) 12:34:11 executing program 3: r0 = syz_open_dev$audion(&(0x7f0000000080), 0x4, 0x84080) r1 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r0, &(0x7f00000001c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r1, 0x400, 0x70bd2b, 0x25dfdbfe, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x1c}}, 0x20000080) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r3, @ANYBLOB="01000000000000000000030000120a0008000000000000800000c6a4ed53dba4884d74f6b046aef24d5049f6e243109f35df6cf93216b06c8467a2b439ebbd5d59efee0bde8cb5"], 0x20}}, 0x90) [ 1055.789014] nbd: must specify a device to reconfigure 12:34:11 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) [ 1055.840647] nbd: must specify a device to reconfigure 12:34:11 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="00042dbd7000fbdbdf25050000000c0004000500000000000000"], 0x20}, 0x1, 0x0, 0x0, 0x800}, 0x40080) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (rerun: 64) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000001c0)={&(0x7f0000000240)=ANY=[@ANYBLOB="300000ea5f5336a87954bb", @ANYRES16=r4, @ANYBLOB="0000fbdbdf2505e3ff000c0004000500000000000000"], 0x20}, 0x1, 0x0, 0x0, 0x20004000}, 0x24000000) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000280)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000100000000000030000000c000828919ac500000000000b4b929a6318a609dd670a009b34b06561003eec838a57bfe911a94f3ef069efe340e77c5b227ef4ee0ec91ab936700cd9676333b0ffd8911df4477b64155914dda858e619274e1f065e7b688cd7d543411e5abae3288fe060c64ac030dd1d52f09b665a51da395c023b43545d7f79149daf6cf3b5154b23b18f8e8ad61e882be187dca99f5a01daa8d1a3f66a8d2821ce5c3dd0b023175a1749e4fc808dd99a35424b50d99ea3c5feafbce62de33295c7f815c11a7bd34152e9b318e3884b8ec5a638e9e178"], 0x20}}, 0x90) 12:34:11 executing program 5: read$FUSE(0xffffffffffffffff, &(0x7f0000000680)={0x2020}, 0x2020) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r0, 0x1}, 0x14}}, 0x0) 12:34:11 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="00042dbd7000fbdbdf25050000000c0004000500000000000000"], 0x20}, 0x1, 0x0, 0x0, 0x800}, 0x40080) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000001c0)={&(0x7f0000000240)=ANY=[@ANYBLOB="300000ea5f5336a87954bb", @ANYRES16=r4, @ANYBLOB="0000fbdbdf2505e3ff000c0004000500000000000000"], 0x20}, 0x1, 0x0, 0x0, 0x20004000}, 0x24000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000280)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000100000000000030000000c000828919ac500000000000b4b929a6318a609dd670a009b34b06561003eec838a57bfe911a94f3ef069efe340e77c5b227ef4ee0ec91ab936700cd9676333b0ffd8911df4477b64155914dda858e619274e1f065e7b688cd7d543411e5abae3288fe060c64ac030dd1d52f09b665a51da395c023b43545d7f79149daf6cf3b5154b23b18f8e8ad61e882be187dca99f5a01daa8d1a3f66a8d2821ce5c3dd0b023175a1749e4fc808dd99a35424b50d99ea3c5feafbce62de33295c7f815c11a7bd34152e9b318e3884b8ec5a638e9e178"], 0x20}}, 0x90) 12:34:11 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x400, 0x2, 0x25dfdbfc}, 0x14}}, 0x404c081) 12:34:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000180)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000100)={&(0x7f00000001c0)={0x50, r1, 0x100, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, ']]:-&'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000001}, @NBD_ATTR_SIZE_BYTES={0x1, 0x2, 0x7fe000000000000}]}, 0x50}, 0x1, 0x0, 0x0, 0x24000000}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) [ 1055.865594] nbd: must specify a device to reconfigure [ 1055.874992] nbd: must specify a device to reconfigure [ 1055.886631] nbd: must specify a device to reconfigure [ 1055.907110] nbd: must specify a device to reconfigure 12:34:11 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) 12:34:11 executing program 5: read$FUSE(0xffffffffffffffff, &(0x7f0000000680)={0x2020}, 0x2020) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r0, 0x1}, 0x14}}, 0x0) 12:34:11 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) 12:34:11 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x400, 0x2, 0x25dfdbfc}, 0x14}}, 0x404c081) 12:34:11 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) 12:34:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) (rerun: 32) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000180)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000100)={&(0x7f00000001c0)={0x50, r1, 0x100, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, ']]:-&'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000001}, @NBD_ATTR_SIZE_BYTES={0x1, 0x2, 0x7fe000000000000}]}, 0x50}, 0x1, 0x0, 0x0, 0x24000000}, 0x0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) [ 1055.994498] nbd: must specify a device to reconfigure [ 1056.009478] nbd: must specify a device to reconfigure 12:34:11 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) 12:34:11 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="00042dbd7000fbdbdf25050000000c0004000500000000000000"], 0x20}, 0x1, 0x0, 0x0, 0x800}, 0x40080) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000001c0)={&(0x7f0000000240)=ANY=[@ANYBLOB="300000ea5f5336a87954bb", @ANYRES16=r4, @ANYBLOB="0000fbdbdf2505e3ff000c0004000500000000000000"], 0x20}, 0x1, 0x0, 0x0, 0x20004000}, 0x24000000) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000280)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000100000000000030000000c000828919ac500000000000b4b929a6318a609dd670a009b34b06561003eec838a57bfe911a94f3ef069efe340e77c5b227ef4ee0ec91ab936700cd9676333b0ffd8911df4477b64155914dda858e619274e1f065e7b688cd7d543411e5abae3288fe060c64ac030dd1d52f09b665a51da395c023b43545d7f79149daf6cf3b5154b23b18f8e8ad61e882be187dca99f5a01daa8d1a3f66a8d2821ce5c3dd0b023175a1749e4fc808dd99a35424b50d99ea3c5feafbce62de33295c7f815c11a7bd34152e9b318e3884b8ec5a638e9e178"], 0x20}}, 0x90) 12:34:11 executing program 5: read$FUSE(0xffffffffffffffff, &(0x7f0000000680)={0x2020}, 0x2020) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r0, 0x1}, 0x14}}, 0x0) 12:34:11 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x400, 0x2, 0x25dfdbfc}, 0x14}}, 0x404c081) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x400, 0x2, 0x25dfdbfc}, 0x14}}, 0x404c081) (async) 12:34:11 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) 12:34:11 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) 12:34:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000180)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000100)={&(0x7f00000001c0)={0x50, r1, 0x100, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, ']]:-&'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000001}, @NBD_ATTR_SIZE_BYTES={0x1, 0x2, 0x7fe000000000000}]}, 0x50}, 0x1, 0x0, 0x0, 0x24000000}, 0x0) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) [ 1056.134408] nbd: must specify a device to reconfigure 12:34:11 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000100)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}, 0x1, 0x0, 0x0, 0x10}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000000c0)={&(0x7f0000000000), 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x34, r1, 0x200, 0x70bd24, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x40}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x34}, 0x1, 0x0, 0x0, 0x24008090}, 0x800) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r7 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r7, 0x0, 0x0) r8 = syz_open_dev$audion(&(0x7f0000000200), 0xffffffffffffffff, 0x200080) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f0000000400)={0xa0, r6, 0x4, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r5}, {0x8, 0x1, r7}, {0x8, 0x1, r5}, {0x8, 0x1, r5}, {0x8, 0x1, r5}, {0x8, 0x1, r8}, {0x8, 0x1, r5}, {0x8, 0x1, r5}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0xa0}, 0x1, 0x0, 0x0, 0x41}, 0x8004) r9 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000380), r5) sendmsg$L2TP_CMD_TUNNEL_CREATE(r8, &(0x7f00000005c0)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)={0x28, r9, 0x200, 0x70bd26, 0x25dfdbfb, {}, [@L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x9}, @L2TP_ATTR_FD={0x8, 0x17, @l2tp6=r7}]}, 0x28}, 0x1, 0x0, 0x0, 0x50}, 0x10) inotify_rm_watch(r5, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) 12:34:11 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) syz_mount_image$ufs(0x0, 0x0, 0x0, 0x2, &(0x7f0000003c80)=[{&(0x7f0000002b00)="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", 0xff9, 0x8}, {&(0x7f0000003b00)="e9", 0x1}], 0x0, 0x0, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000300), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000003c0)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x1c, r3, 0x100, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x1}, 0x4000080) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100000000000000000023000000"], 0x14}}, 0x0) ptrace$peeksig(0x4209, 0xffffffffffffffff, &(0x7f0000000000)={0x10001, 0x0, 0x5}, &(0x7f0000000040)=[{}, {}, {}, {}, {}]) 12:34:11 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x90) 12:34:11 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x0) 12:34:11 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_START(r1, &(0x7f0000000280)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x14, 0x0, 0x400, 0x70bd2d, 0x25dfdbfb, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0xc0}, 0x840) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000080), r1) syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r3) sendmsg$NET_DM_CMD_START(r3, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x14, r4, 0x100, 0x70bd27, 0x25dfdbff, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x20000010}, 0x20000000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000002c0)=ANY=[@ANYBLOB="6cdb200000008e1dc71ccd227858d6e78f8d2e183dfd632bff0285e9973d47182c3493ff01000000000000da620b2a7777ec88f1a3294a463e4c3ce6cba96b5ddd83504943fad9fe91cd3a5ea03249230a80fb00f3377903afa8c20844637a3e0954dbe88a8e2f91df0e5b4b700d67e575d8172d8144065b27835b46a2560ae76cbfd5cd5fd52c8e0ac434ecdc35899cff5b03138b1f253bb358c8c671a2584e8d934feb357df280f694578e7e585d68aec8678a93782aacb0519987228f0be5d34ca58b37de9c370bac03745bcafa18182df30bb65467dfef09a8d3ba7d329056464791a521c4216c6ef17cefef9c443d2400"/253, @ANYRES16=r2, @ANYBLOB="01000000000000000000030000000c0008000000000000000000"], 0x20}}, 0x90) [ 1056.235015] nbd: must specify a device to reconfigure [ 1056.246329] nbd: must specify a device to reconfigure 12:34:11 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000100)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}, 0x1, 0x0, 0x0, 0x10}, 0x0) (async, rerun: 64) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async, rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000000c0)={&(0x7f0000000000), 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x34, r1, 0x200, 0x70bd24, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x40}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x34}, 0x1, 0x0, 0x0, 0x24008090}, 0x800) (async, rerun: 64) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) (async, rerun: 64) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) (async) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r7 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r7, 0x0, 0x0) r8 = syz_open_dev$audion(&(0x7f0000000200), 0xffffffffffffffff, 0x200080) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f0000000400)={0xa0, r6, 0x4, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r5}, {0x8, 0x1, r7}, {0x8, 0x1, r5}, {0x8, 0x1, r5}, {0x8, 0x1, r5}, {0x8, 0x1, r8}, {0x8, 0x1, r5}, {0x8, 0x1, r5}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0xa0}, 0x1, 0x0, 0x0, 0x41}, 0x8004) (async) r9 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000380), r5) sendmsg$L2TP_CMD_TUNNEL_CREATE(r8, &(0x7f00000005c0)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)={0x28, r9, 0x200, 0x70bd26, 0x25dfdbfb, {}, [@L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x9}, @L2TP_ATTR_FD={0x8, 0x17, @l2tp6=r7}]}, 0x28}, 0x1, 0x0, 0x0, 0x50}, 0x10) (async, rerun: 32) inotify_rm_watch(r5, 0x0) (rerun: 32) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) 12:34:11 executing program 3: r0 = syz_open_dev$audion(&(0x7f0000000080), 0x4, 0x84080) r1 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r0, &(0x7f00000001c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r1, 0x400, 0x70bd2b, 0x25dfdbfe, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x1c}}, 0x20000080) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r3, @ANYBLOB="01000000000000000000030000120a0008000000000000800000c6a4ed53dba4884d74f6b046aef24d5049f6e243109f35df6cf93216b06c8467a2b439ebbd5d59efee0bde8cb5"], 0x20}}, 0x90) 12:34:11 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_START(r1, &(0x7f0000000280)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x14, 0x0, 0x400, 0x70bd2d, 0x25dfdbfb, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0xc0}, 0x840) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async, rerun: 64) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r4 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000080), r1) syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r3) sendmsg$NET_DM_CMD_START(r3, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x14, r4, 0x100, 0x70bd27, 0x25dfdbff, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x20000010}, 0x20000000) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000002c0)=ANY=[@ANYBLOB="6cdb200000008e1dc71ccd227858d6e78f8d2e183dfd632bff0285e9973d47182c3493ff01000000000000da620b2a7777ec88f1a3294a463e4c3ce6cba96b5ddd83504943fad9fe91cd3a5ea03249230a80fb00f3377903afa8c20844637a3e0954dbe88a8e2f91df0e5b4b700d67e575d8172d8144065b27835b46a2560ae76cbfd5cd5fd52c8e0ac434ecdc35899cff5b03138b1f253bb358c8c671a2584e8d934feb357df280f694578e7e585d68aec8678a93782aacb0519987228f0be5d34ca58b37de9c370bac03745bcafa18182df30bb65467dfef09a8d3ba7d329056464791a521c4216c6ef17cefef9c443d2400"/253, @ANYRES16=r2, @ANYBLOB="01000000000000000000030000000c0008000000000000000000"], 0x20}}, 0x90) 12:34:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) syz_genetlink_get_family_id$net_dm(&(0x7f0000000300), r0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x2c, r5, 0x8, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24044000}, 0x4000040) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="00fd2cbd7000fedbdf250500000008000100940000000023000000000000000c0006000100"/46], 0x34}, 0x1, 0x0, 0x0, 0x48000}, 0x20000800) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x40, r5, 0x300, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x86f}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xdbcb}]}, 0x40}, 0x1, 0x0, 0x0, 0x40000}, 0x20004054) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x200}, 0x14}}, 0x0) 12:34:11 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) syz_mount_image$ufs(0x0, 0x0, 0x0, 0x2, &(0x7f0000003c80)=[{&(0x7f0000002b00)="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", 0xff9, 0x8}, {&(0x7f0000003b00)="e9", 0x1}], 0x0, 0x0, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000300), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000003c0)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x1c, r3, 0x100, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x1}, 0x4000080) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100000000000000000023000000"], 0x14}}, 0x0) ptrace$peeksig(0x4209, 0xffffffffffffffff, &(0x7f0000000000)={0x10001, 0x0, 0x5}, &(0x7f0000000040)=[{}, {}, {}, {}, {}]) 12:34:11 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000120a0008"], 0x20}}, 0x0) 12:34:11 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) r7 = bpf$ITER_CREATE(0x21, &(0x7f0000000040), 0x8) r8 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r8, 0x0, 0x0) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r9, &(0x7f0000000280)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x28, r3, 0x200, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}]}, 0x28}, 0x1, 0x0, 0x0, 0x4080}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x94, r1, 0x300, 0x70bd2a, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8, 0x1, r8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfff}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}]}, 0x94}, 0x1, 0x0, 0x0, 0x4001}, 0x8010) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x100, 0x70bd28}, 0x14}}, 0x0) 12:34:11 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000100)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}, 0x1, 0x0, 0x0, 0x10}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000000c0)={&(0x7f0000000000), 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x34, r1, 0x200, 0x70bd24, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x40}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x34}, 0x1, 0x0, 0x0, 0x24008090}, 0x800) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r7 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r7, 0x0, 0x0) r8 = syz_open_dev$audion(&(0x7f0000000200), 0xffffffffffffffff, 0x200080) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f0000000400)={0xa0, r6, 0x4, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r5}, {0x8, 0x1, r7}, {0x8, 0x1, r5}, {0x8, 0x1, r5}, {0x8, 0x1, r5}, {0x8, 0x1, r8}, {0x8, 0x1, r5}, {0x8, 0x1, r5}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0xa0}, 0x1, 0x0, 0x0, 0x41}, 0x8004) r9 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000380), r5) sendmsg$L2TP_CMD_TUNNEL_CREATE(r8, &(0x7f00000005c0)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)={0x28, r9, 0x200, 0x70bd26, 0x25dfdbfb, {}, [@L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x9}, @L2TP_ATTR_FD={0x8, 0x17, @l2tp6=r7}]}, 0x28}, 0x1, 0x0, 0x0, 0x50}, 0x10) inotify_rm_watch(r5, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000100)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}, 0x1, 0x0, 0x0, 0x10}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000000c0)={&(0x7f0000000000), 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x34, r1, 0x200, 0x70bd24, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x40}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x34}, 0x1, 0x0, 0x0, 0x24008090}, 0x800) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r7, 0x0, 0x0) (async) syz_open_dev$audion(&(0x7f0000000200), 0xffffffffffffffff, 0x200080) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f0000000400)={0xa0, r6, 0x4, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r5}, {0x8, 0x1, r7}, {0x8, 0x1, r5}, {0x8, 0x1, r5}, {0x8, 0x1, r5}, {0x8, 0x1, r8}, {0x8, 0x1, r5}, {0x8, 0x1, r5}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0xa0}, 0x1, 0x0, 0x0, 0x41}, 0x8004) (async) syz_genetlink_get_family_id$l2tp(&(0x7f0000000380), r5) (async) sendmsg$L2TP_CMD_TUNNEL_CREATE(r8, &(0x7f00000005c0)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)={0x28, r9, 0x200, 0x70bd26, 0x25dfdbfb, {}, [@L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x9}, @L2TP_ATTR_FD={0x8, 0x17, @l2tp6=r7}]}, 0x28}, 0x1, 0x0, 0x0, 0x50}, 0x10) (async) inotify_rm_watch(r5, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) (async) 12:34:11 executing program 3: r0 = syz_open_dev$audion(&(0x7f0000000080), 0x4, 0x84080) r1 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r0, &(0x7f00000001c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r1, 0x400, 0x70bd2b, 0x25dfdbfe, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x1c}}, 0x20000080) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16, @ANYBLOB="01000000000000000000030000120a0008000000000000800000c6a4ed53dba4884d74f6b046aef24d5049f6e243109f35df6cf93216b06c8467a2b439ebbd5d59efee0bde8cb5"], 0x20}}, 0x90) 12:34:11 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) syz_mount_image$ufs(0x0, 0x0, 0x0, 0x2, &(0x7f0000003c80)=[{&(0x7f0000002b00)="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", 0xff9, 0x8}, {&(0x7f0000003b00)="e9", 0x1}], 0x0, 0x0, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000300), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000003c0)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x1c, r3, 0x100, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x1}, 0x4000080) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100000000000000000023000000"], 0x14}}, 0x0) ptrace$peeksig(0x4209, 0xffffffffffffffff, &(0x7f0000000000)={0x10001, 0x0, 0x5}, &(0x7f0000000040)=[{}, {}, {}, {}, {}]) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) syz_mount_image$ufs(0x0, 0x0, 0x0, 0x2, &(0x7f0000003c80)=[{&(0x7f0000002b00)="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", 0xff9, 0x8}, {&(0x7f0000003b00)="e9", 0x1}], 0x0, 0x0, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000300), r1) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000003c0)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x1c, r3, 0x100, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x1}, 0x4000080) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100000000000000000023000000"], 0x14}}, 0x0) (async) ptrace$peeksig(0x4209, 0xffffffffffffffff, &(0x7f0000000000)={0x10001, 0x0, 0x5}, &(0x7f0000000040)=[{}, {}, {}, {}, {}]) (async) 12:34:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000300), r0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x2c, r5, 0x8, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24044000}, 0x4000040) (async) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="00fd2cbd7000fedbdf250500000008000100940000000023000000000000000c0006000100"/46], 0x34}, 0x1, 0x0, 0x0, 0x48000}, 0x20000800) (async, rerun: 64) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x40, r5, 0x300, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x86f}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xdbcb}]}, 0x40}, 0x1, 0x0, 0x0, 0x40000}, 0x20004054) (async, rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x200}, 0x14}}, 0x0) [ 1056.428040] block nbd2: not configured, cannot reconfigure 12:34:11 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_START(r1, &(0x7f0000000280)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x14, 0x0, 0x400, 0x70bd2d, 0x25dfdbfb, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0xc0}, 0x840) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000080), r1) syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r3) sendmsg$NET_DM_CMD_START(r3, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x14, r4, 0x100, 0x70bd27, 0x25dfdbff, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x20000010}, 0x20000000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000002c0)=ANY=[@ANYBLOB="6cdb200000008e1dc71ccd227858d6e78f8d2e183dfd632bff0285e9973d47182c3493ff01000000000000da620b2a7777ec88f1a3294a463e4c3ce6cba96b5ddd83504943fad9fe91cd3a5ea03249230a80fb00f3377903afa8c20844637a3e0954dbe88a8e2f91df0e5b4b700d67e575d8172d8144065b27835b46a2560ae76cbfd5cd5fd52c8e0ac434ecdc35899cff5b03138b1f253bb358c8c671a2584e8d934feb357df280f694578e7e585d68aec8678a93782aacb0519987228f0be5d34ca58b37de9c370bac03745bcafa18182df30bb65467dfef09a8d3ba7d329056464791a521c4216c6ef17cefef9c443d2400"/253, @ANYRES16=r2, @ANYBLOB="01000000000000000000030000000c0008000000000000000000"], 0x20}}, 0x90) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NET_DM_CMD_START(r1, &(0x7f0000000280)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x14, 0x0, 0x400, 0x70bd2d, 0x25dfdbfb, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0xc0}, 0x840) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000080), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r3) (async) sendmsg$NET_DM_CMD_START(r3, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x14, r4, 0x100, 0x70bd27, 0x25dfdbff, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x20000010}, 0x20000000) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000002c0)=ANY=[@ANYBLOB="6cdb200000008e1dc71ccd227858d6e78f8d2e183dfd632bff0285e9973d47182c3493ff01000000000000da620b2a7777ec88f1a3294a463e4c3ce6cba96b5ddd83504943fad9fe91cd3a5ea03249230a80fb00f3377903afa8c20844637a3e0954dbe88a8e2f91df0e5b4b700d67e575d8172d8144065b27835b46a2560ae76cbfd5cd5fd52c8e0ac434ecdc35899cff5b03138b1f253bb358c8c671a2584e8d934feb357df280f694578e7e585d68aec8678a93782aacb0519987228f0be5d34ca58b37de9c370bac03745bcafa18182df30bb65467dfef09a8d3ba7d329056464791a521c4216c6ef17cefef9c443d2400"/253, @ANYRES16=r2, @ANYBLOB="01000000000000000000030000000c0008000000000000000000"], 0x20}}, 0x90) (async) 12:34:11 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, 0x0, 0x90) [ 1056.499946] nbd: must specify a device to reconfigure 12:34:11 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000240)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x78, 0x0, 0x400, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x59995d3d88066e09}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000000}]}, 0x78}, 0x1, 0x0, 0x0, 0x2000000}, 0x40800) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r4, @ANYBLOB="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"], 0x14}}, 0x0) 12:34:11 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x38, r1, 0x2, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '%'}]}, 0x38}, 0x1, 0x0, 0x0, 0x40000}, 0x20040801) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) 12:34:11 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x10, 0x70bd27, 0x25dfdbfd, {}, ["", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4004004}, 0x8000) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000280)) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000340)={0x38, r3, 0x200, 0x200000, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1b}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x24}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}]}, 0x38}, 0x1, 0x0, 0x0, 0x40088c1}, 0x24044005) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x38, r3, 0x2, 0x70bd0d, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000000}]}, 0x38}, 0x1, 0x0, 0x0, 0x40080}, 0x4085) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r7) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r8, 0x1}, 0x14}}, 0x0) r9 = syz_open_dev$ptys(0xc, 0x3, 0x0) syz_open_pts(r9, 0x210000) 12:34:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) syz_genetlink_get_family_id$net_dm(&(0x7f0000000300), r0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x2c, r5, 0x8, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24044000}, 0x4000040) (async) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="00fd2cbd7000fedbdf250500000008000100940000000023000000000000000c0006000100"/46], 0x34}, 0x1, 0x0, 0x0, 0x48000}, 0x20000800) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x40, r5, 0x300, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x86f}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xdbcb}]}, 0x40}, 0x1, 0x0, 0x0, 0x40000}, 0x20004054) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x200}, 0x14}}, 0x0) 12:34:11 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB="742f761d", @ANYRES16=r2, @ANYBLOB="000326bd7000fedbdf25050000000c00040000000080000000001400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r3, @ANYBLOB="0c00040000fcffffffffffff16000a005b2b29282a24292d252d302f485d2d2d00b40000"], 0x58}, 0x1, 0x0, 0x0, 0x810}, 0x8014) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) r7 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), r3) sendmsg$L2TP_CMD_SESSION_GET(r6, &(0x7f00000002c0)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x54, r7, 0x400, 0x70bd26, 0x25dfdbff, {}, [@L2TP_ATTR_UDP_DPORT={0x6, 0x1b, 0x4e21}, @L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x5e5}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @loopback}, @L2TP_ATTR_CONN_ID={0x8, 0x9, 0x2}, @L2TP_ATTR_MTU={0x6, 0x1c, 0x101}, @L2TP_ATTR_UDP_DPORT={0x6, 0x1b, 0x4e21}]}, 0x54}, 0x1, 0x0, 0x0, 0x2400c000}, 0x4000804) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r5, 0x1}, 0x14}}, 0x0) 12:34:11 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000100)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000024fd6cc5a4b600000000000000030000000c0008000000000000000000"], 0x20}}, 0x90) r3 = openat$dsp(0xffffffffffffff9c, &(0x7f0000000000), 0x414c80, 0x0) ioctl$mixer_OSS_ALSAEMULVER(r3, 0x80044df9, &(0x7f0000000040)) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000004c0)=ANY=[@ANYBLOB="a2001700500c74df22e09a37448b90cfee7c04d0ff4c6fa83daa6de00086cc3a9d3bc2333b890044364f3046ea5678712d2efae97d003c6dfef82b4c7353ab7cec95f28590b3eb4a", @ANYRES16=r6, @ANYBLOB="010000000000000000000300000008000100000000000d000a002f6465762f64737000000000"], 0x2c}}, 0x0) pipe2$watch_queue(&(0x7f0000000400)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) ioctl$SNDCTL_DSP_SETTRIGGER(r7, 0x40045010, &(0x7f0000000440)=0x8000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000280)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x84, r6, 0x300, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x200}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100000000}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, '-,HI'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xa6}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000000}]}, 0x84}, 0x1, 0x0, 0x0, 0x20000081}, 0x0) r8 = bpf$ITER_CREATE(0x21, &(0x7f0000000080), 0x8) r9 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r9, 0x0, 0x0) r10 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000300), r8) ioctl$SNDCTL_DSP_SETDUPLEX(r3, 0x5016, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r9, &(0x7f00000003c0)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000380)={&(0x7f0000000480)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r10, @ANYBLOB="000326bd7000ffdbdf761275e2d932e172a4c825050000000800090001000008001700"/44, @ANYRES32=r8, @ANYBLOB="06001c0003000000"], 0x34}, 0x1, 0x0, 0x0, 0x8081}, 0x40) ioctl$SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS(r8, 0xc0045516, &(0x7f00000000c0)=0xa92) 12:34:12 executing program 3: set_mempolicy(0x0, &(0x7f0000000040), 0xf25) [ 1056.618803] nbd: must specify a device to reconfigure 12:34:12 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x38, r1, 0x2, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '%'}]}, 0x38}, 0x1, 0x0, 0x0, 0x40000}, 0x20040801) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) 12:34:12 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x38, r1, 0x2, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '%'}]}, 0x38}, 0x1, 0x0, 0x0, 0x40000}, 0x20040801) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) 12:34:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) (async) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB="742f761d", @ANYRES16=r2, @ANYBLOB="000326bd7000fedbdf25050000000c00040000000080000000001400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r3, @ANYBLOB="0c00040000fcffffffffffff16000a005b2b29282a24292d252d302f485d2d2d00b40000"], 0x58}, 0x1, 0x0, 0x0, 0x810}, 0x8014) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) (async) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) r7 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), r3) sendmsg$L2TP_CMD_SESSION_GET(r6, &(0x7f00000002c0)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x54, r7, 0x400, 0x70bd26, 0x25dfdbff, {}, [@L2TP_ATTR_UDP_DPORT={0x6, 0x1b, 0x4e21}, @L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x5e5}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @loopback}, @L2TP_ATTR_CONN_ID={0x8, 0x9, 0x2}, @L2TP_ATTR_MTU={0x6, 0x1c, 0x101}, @L2TP_ATTR_UDP_DPORT={0x6, 0x1b, 0x4e21}]}, 0x54}, 0x1, 0x0, 0x0, 0x2400c000}, 0x4000804) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r5, 0x1}, 0x14}}, 0x0) 12:34:12 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000100)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000024fd6cc5a4b600000000000000030000000c0008000000000000000000"], 0x20}}, 0x90) (async) r3 = openat$dsp(0xffffffffffffff9c, &(0x7f0000000000), 0x414c80, 0x0) ioctl$mixer_OSS_ALSAEMULVER(r3, 0x80044df9, &(0x7f0000000040)) (async, rerun: 32) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000004c0)=ANY=[@ANYBLOB="a2001700500c74df22e09a37448b90cfee7c04d0ff4c6fa83daa6de00086cc3a9d3bc2333b890044364f3046ea5678712d2efae97d003c6dfef82b4c7353ab7cec95f28590b3eb4a", @ANYRES16=r6, @ANYBLOB="010000000000000000000300000008000100000000000d000a002f6465762f64737000000000"], 0x2c}}, 0x0) (async, rerun: 64) pipe2$watch_queue(&(0x7f0000000400)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) (rerun: 64) ioctl$SNDCTL_DSP_SETTRIGGER(r7, 0x40045010, &(0x7f0000000440)=0x8000) (async, rerun: 32) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000280)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x84, r6, 0x300, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x200}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100000000}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, '-,HI'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xa6}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000000}]}, 0x84}, 0x1, 0x0, 0x0, 0x20000081}, 0x0) (rerun: 32) r8 = bpf$ITER_CREATE(0x21, &(0x7f0000000080), 0x8) (async, rerun: 64) r9 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (rerun: 64) sendmsg$L2TP_CMD_SESSION_CREATE(r9, 0x0, 0x0) r10 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000300), r8) ioctl$SNDCTL_DSP_SETDUPLEX(r3, 0x5016, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r9, &(0x7f00000003c0)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000380)={&(0x7f0000000480)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r10, @ANYBLOB="000326bd7000ffdbdf761275e2d932e172a4c825050000000800090001000008001700"/44, @ANYRES32=r8, @ANYBLOB="06001c0003000000"], 0x34}, 0x1, 0x0, 0x0, 0x8081}, 0x40) (async) ioctl$SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS(r8, 0xc0045516, &(0x7f00000000c0)=0xa92) 12:34:12 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_START(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2210200}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x300, 0x70bd26, 0x25dfdbff, {}, ["", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x20000004}, 0xc00) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) [ 1056.671617] block nbd2: not configured, cannot reconfigure [ 1056.697250] nbd: must specify a device to reconfigure 12:34:12 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x38, r1, 0x2, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '%'}]}, 0x38}, 0x1, 0x0, 0x0, 0x40000}, 0x20040801) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) 12:34:12 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000100)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000024fd6cc5a4b600000000000000030000000c0008000000000000000000"], 0x20}}, 0x90) r3 = openat$dsp(0xffffffffffffff9c, &(0x7f0000000000), 0x414c80, 0x0) ioctl$mixer_OSS_ALSAEMULVER(r3, 0x80044df9, &(0x7f0000000040)) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000004c0)=ANY=[@ANYBLOB="a2001700500c74df22e09a37448b90cfee7c04d0ff4c6fa83daa6de00086cc3a9d3bc2333b890044364f3046ea5678712d2efae97d003c6dfef82b4c7353ab7cec95f28590b3eb4a", @ANYRES16=r6, @ANYBLOB="010000000000000000000300000008000100000000000d000a002f6465762f64737000000000"], 0x2c}}, 0x0) pipe2$watch_queue(&(0x7f0000000400)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) ioctl$SNDCTL_DSP_SETTRIGGER(r7, 0x40045010, &(0x7f0000000440)=0x8000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000280)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x84, r6, 0x300, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x200}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100000000}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, '-,HI'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xa6}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000000}]}, 0x84}, 0x1, 0x0, 0x0, 0x20000081}, 0x0) r8 = bpf$ITER_CREATE(0x21, &(0x7f0000000080), 0x8) r9 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r9, 0x0, 0x0) r10 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000300), r8) ioctl$SNDCTL_DSP_SETDUPLEX(r3, 0x5016, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r9, &(0x7f00000003c0)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000380)={&(0x7f0000000480)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r10, @ANYBLOB="000326bd7000ffdbdf761275e2d932e172a4c825050000000800090001000008001700"/44, @ANYRES32=r8, @ANYBLOB="06001c0003000000"], 0x34}, 0x1, 0x0, 0x0, 0x8081}, 0x40) ioctl$SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS(r8, 0xc0045516, &(0x7f00000000c0)=0xa92) [ 1056.739502] nbd: must specify a device to reconfigure 12:34:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) (async) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB="742f761d", @ANYRES16=r2, @ANYBLOB="000326bd7000fedbdf25050000000c00040000000080000000001400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r3, @ANYBLOB="0c00040000fcffffffffffff16000a005b2b29282a24292d252d302f485d2d2d00b40000"], 0x58}, 0x1, 0x0, 0x0, 0x810}, 0x8014) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) (async) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) (async) r7 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), r3) sendmsg$L2TP_CMD_SESSION_GET(r6, &(0x7f00000002c0)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x54, r7, 0x400, 0x70bd26, 0x25dfdbff, {}, [@L2TP_ATTR_UDP_DPORT={0x6, 0x1b, 0x4e21}, @L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x5e5}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @loopback}, @L2TP_ATTR_CONN_ID={0x8, 0x9, 0x2}, @L2TP_ATTR_MTU={0x6, 0x1c, 0x101}, @L2TP_ATTR_UDP_DPORT={0x6, 0x1b, 0x4e21}]}, 0x54}, 0x1, 0x0, 0x0, 0x2400c000}, 0x4000804) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r5, 0x1}, 0x14}}, 0x0) 12:34:12 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="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"], 0x20}}, 0x90) [ 1056.786418] nbd: must specify a device to reconfigure [ 1056.797743] nbd: must specify a device to reconfigure [ 1056.825300] nbd: must specify a device to reconfigure 12:34:12 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_START(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2210200}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x300, 0x70bd26, 0x25dfdbff, {}, ["", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x20000004}, 0xc00) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:12 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)=ANY=[@ANYBLOB="15000000", @ANYRES16=0x0, @ANYBLOB="0000000000000000000003000000"], 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) [ 1056.849963] nbd: must specify a device to reconfigure 12:34:12 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r1, @ANYBLOB="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"], 0x20}}, 0x90) 12:34:12 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000100)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000024fd6cc5a4b600000000000000030000000c0008000000000000000000"], 0x20}}, 0x90) r3 = openat$dsp(0xffffffffffffff9c, &(0x7f0000000000), 0x414c80, 0x0) ioctl$mixer_OSS_ALSAEMULVER(r3, 0x80044df9, &(0x7f0000000040)) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000004c0)=ANY=[@ANYBLOB="a2001700500c74df22e09a37448b90cfee7c04d0ff4c6fa83daa6de00086cc3a9d3bc2333b890044364f3046ea5678712d2efae97d003c6dfef82b4c7353ab7cec95f28590b3eb4a", @ANYRES16=r6, @ANYBLOB="010000000000000000000300000008000100000000000d000a002f6465762f64737000000000"], 0x2c}}, 0x0) pipe2$watch_queue(&(0x7f0000000400)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) ioctl$SNDCTL_DSP_SETTRIGGER(r7, 0x40045010, &(0x7f0000000440)=0x8000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000280)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x84, r6, 0x300, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x200}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100000000}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, '-,HI'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xa6}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000000}]}, 0x84}, 0x1, 0x0, 0x0, 0x20000081}, 0x0) r8 = bpf$ITER_CREATE(0x21, &(0x7f0000000080), 0x8) r9 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r9, 0x0, 0x0) r10 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000300), r8) ioctl$SNDCTL_DSP_SETDUPLEX(r3, 0x5016, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r9, &(0x7f00000003c0)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000380)={&(0x7f0000000480)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r10, @ANYBLOB="000326bd7000ffdbdf761275e2d932e172a4c825050000000800090001000008001700"/44, @ANYRES32=r8, @ANYBLOB="06001c0003000000"], 0x34}, 0x1, 0x0, 0x0, 0x8081}, 0x40) ioctl$SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS(r8, 0xc0045516, &(0x7f00000000c0)=0xa92) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000100)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000024fd6cc5a4b600000000000000030000000c0008000000000000000000"], 0x20}}, 0x90) (async) openat$dsp(0xffffffffffffff9c, &(0x7f0000000000), 0x414c80, 0x0) (async) ioctl$mixer_OSS_ALSAEMULVER(r3, 0x80044df9, &(0x7f0000000040)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) (async) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000004c0)=ANY=[@ANYBLOB="a2001700500c74df22e09a37448b90cfee7c04d0ff4c6fa83daa6de00086cc3a9d3bc2333b890044364f3046ea5678712d2efae97d003c6dfef82b4c7353ab7cec95f28590b3eb4a", @ANYRES16=r6, @ANYBLOB="010000000000000000000300000008000100000000000d000a002f6465762f64737000000000"], 0x2c}}, 0x0) (async) pipe2$watch_queue(&(0x7f0000000400), 0x80) (async) ioctl$SNDCTL_DSP_SETTRIGGER(r7, 0x40045010, &(0x7f0000000440)=0x8000) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000280)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x84, r6, 0x300, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x200}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100000000}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, '-,HI'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xa6}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000000}]}, 0x84}, 0x1, 0x0, 0x0, 0x20000081}, 0x0) (async) bpf$ITER_CREATE(0x21, &(0x7f0000000080), 0x8) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r9, 0x0, 0x0) (async) syz_genetlink_get_family_id$l2tp(&(0x7f0000000300), r8) (async) ioctl$SNDCTL_DSP_SETDUPLEX(r3, 0x5016, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r9, &(0x7f00000003c0)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000380)={&(0x7f0000000480)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r10, @ANYBLOB="000326bd7000ffdbdf761275e2d932e172a4c825050000000800090001000008001700"/44, @ANYRES32=r8, @ANYBLOB="06001c0003000000"], 0x34}, 0x1, 0x0, 0x0, 0x8081}, 0x40) (async) ioctl$SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS(r8, 0xc0045516, &(0x7f00000000c0)=0xa92) (async) 12:34:12 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_START(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2210200}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x300, 0x70bd26, 0x25dfdbff, {}, ["", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x20000004}, 0xc00) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x4c, r2, 0x10, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4d}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}]}, 0x4c}}, 0x1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) [ 1056.920110] nbd: must specify a device to reconfigure 12:34:12 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r0) sendmsg$NET_DM_CMD_STOP(r1, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1, 0x0, 0x0, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x5}, 0x24000880) 12:34:12 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r3) [ 1056.975003] nbd: must specify a device to reconfigure 12:34:12 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)=ANY=[@ANYBLOB="15000000", @ANYRES16=0x0, @ANYBLOB="0000000000000000000003000000"], 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)=ANY=[@ANYBLOB="15000000", @ANYRES16=0x0, @ANYBLOB="0000000000000000000003000000"], 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) (async) 12:34:12 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="043cf8bfe1db6bdc47d240efa5e7fdf370035d7b6f33c14f8fbf847ab38f0694156ea5339978978c1f", @ANYRES16=r2, @ANYBLOB="01000000000000000000030000000c0008000000000000000000"], 0x20}}, 0x90) [ 1057.003114] nbd: must specify a device to reconfigure 12:34:12 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000000c0)=ANY=[@ANYRES64=r4, @ANYRES16=r2, @ANYBLOB="01e75ccd4cb0cc82be6efe6439a6e4b1ea540d987c933fa4a23852656695a8da69d9ef672ca8947a7eccf644b86751e5f860dfc7d780df8a44", @ANYRES8=r2], 0x14}}, 0x0) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000180)='cgroup.procs\x00', 0x2, 0x0) 12:34:12 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000000c0)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="8e89896cfeffffffffff810000000000000003ee3cc6a465cfc1c83947aae6abce829201000100000000005afc4cc4eabca8f4304fa0ab588949f2fad4b3d7008054fb5a0824692b32ccabceee6665b7f1dabb9712ac55cb568781599a2fe80c009d070000007a116d7dde0db6f5283e3433d3cedc559ca951f3bf83e6485c6fae1d3dbfe59cee2028995f5fa34421a2dec8694d"], 0x14}}, 0x0) [ 1057.041735] nbd: must specify a device to reconfigure 12:34:12 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="043cf8bfe1db6bdc47d240efa5e7fdf370035d7b6f33c14f8fbf847ab38f0694156ea5339978978c1f", @ANYRES16=r2, @ANYBLOB="01000000000000000000030000000c0008000000000000000000"], 0x20}}, 0x90) 12:34:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x4c, r2, 0x10, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4d}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}]}, 0x4c}}, 0x1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) [ 1057.084968] nbd: must specify a device to reconfigure 12:34:12 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="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"], 0x20}}, 0x90) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 12:34:12 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000280)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x58, 0x0, 0x100, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffffffffff6a}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}]}, 0x58}, 0x1, 0x0, 0x0, 0xc003}, 0x4001) r4 = bpf$ITER_CREATE(0x21, &(0x7f0000000000), 0x8) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000040)=ANY=[@ANYBLOB="5c0000009da0b8e6ead648053243515aa19efa7625cd0500000030bfe1d412220561bfbcfedd0825bdba36a1cb81077d483c1836930d8cd215d14c2763e9ac643ecbd5032172981089861c78b834f4c19419d18dc0e57d00a4f0fc52daf3d9432c634416b715a8ab4beefd5b5375aa5702f3d1234826a637f13ec6604b29b482f3b62b0cdded42b22251a7d5ee51a3", @ANYRES16=r2, @ANYBLOB="000100000000000000000300000000000a0028402e5d5b24212a26552226235b00000000020005000000000000000c00040008000000000000000c00078008000100", @ANYRES32=r4, @ANYBLOB="b92f9c51738eb1bc766da88bb04004f4ae4325d6eaac3d865b17ef20b4826b35ae7ba8f6d19b4c425584236aa110a9f6de995c041d3cf34fe58c8d75"], 0x5c}}, 0x0) [ 1057.114020] nbd: must specify a device to reconfigure 12:34:12 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000000c0)=ANY=[@ANYRES64=r4, @ANYRES16=r2, @ANYBLOB="01e75ccd4cb0cc82be6efe6439a6e4b1ea540d987c933fa4a23852656695a8da69d9ef672ca8947a7eccf644b86751e5f860dfc7d780df8a44", @ANYRES8=r2], 0x14}}, 0x0) (async) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000180)='cgroup.procs\x00', 0x2, 0x0) 12:34:12 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)=ANY=[@ANYBLOB="15000000", @ANYRES16=0x0, @ANYBLOB="0000000000000000000003000000"], 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) 12:34:12 executing program 4: bpf$LINK_GET_NEXT_ID(0x1f, &(0x7f0000000100)={0x8}, 0x8) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="09005e708874096ea6aacc30572e96a3dcc6f000004070b72aefa8c785145f3811c66f8fed6bf93f3b73a78fe75417d83b3b5c33dc161d605adde807d13509f9ee9fbb74ee46e10a97a4c2abfe3aa348dc7e238f895551fe550864db8c7a3231ae878814f9dc74257164d1828a3cef26e8942409c7215d4d53f8fff79b4810ee6729ffc799a87d714c97e9196d4f47f8cb09b5d75e8fa11ddab3819c6cd8b0262c4f73d50da0f8e1ff0f1ebb2c14a6169b1d73d73cf3a192393516510d61f2e83108"], 0x14}}, 0x0) 12:34:12 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="043cf8bfe1db6bdc47d240efa5e7fdf370035d7b6f33c14f8fbf847ab38f0694156ea5339978978c1f", @ANYRES16=r2, @ANYBLOB="01000000000000000000030000000c0008000000000000000000"], 0x20}}, 0x90) [ 1057.175820] nbd: must specify a device to reconfigure 12:34:12 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="0100000000000010000003000000080001000000000007f9ffffffffffff2f64737000000000"], 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x28, r4, 0x8, 0x70bd2a, 0x6, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4000400000000}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) r7 = socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r7, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000680)=ANY=[@ANYBLOB="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", @ANYRES16=r8, @ANYBLOB="010000000000000000000800000008001700", @ANYRES32, @ANYBLOB="0c000f0000000000000000000500220000000000"], 0x30}}, 0x0) pipe2$watch_queue(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r10 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r11 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000340), r5) sendmsg$NET_DM_CMD_STOP(r10, &(0x7f0000000400)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x14, r11, 0x200, 0x70bd27, 0x25dfdbfe, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x20004000}, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(0xffffffffffffffff, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x50, r8, 0x20, 0x70bd2b, 0x25dfdbfd, {}, [@L2TP_ATTR_IFNAME={0x14, 0x8, 'ip6gretap0\x00'}, @L2TP_ATTR_RECV_SEQ={0x5, 0x12, 0x5}, @L2TP_ATTR_MRU={0x6, 0x1d, 0x3f}, @L2TP_ATTR_UDP_SPORT={0x6, 0x1a, 0x9}, @L2TP_ATTR_SEND_SEQ={0x5, 0x13, 0x3}, @L2TP_ATTR_FD={0x8, 0x17, @udp=r9}]}, 0x50}, 0x1, 0x0, 0x0, 0x20044855}, 0x40004) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r6, 0x1}, 0x14}}, 0x0) 12:34:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x4c, r2, 0x10, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4d}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}]}, 0x4c}}, 0x1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) (async) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x4c, r2, 0x10, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4d}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}]}, 0x4c}}, 0x1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (async) 12:34:12 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000000c0)=ANY=[@ANYRES64=r4, @ANYRES16=r2, @ANYBLOB="01e75ccd4cb0cc82be6efe6439a6e4b1ea540d987c933fa4a23852656695a8da69d9ef672ca8947a7eccf644b86751e5f860dfc7d780df8a44", @ANYRES8=r2], 0x14}}, 0x0) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000180)='cgroup.procs\x00', 0x2, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000000c0)=ANY=[@ANYRES64=r4, @ANYRES16=r2, @ANYBLOB="01e75ccd4cb0cc82be6efe6439a6e4b1ea540d987c933fa4a23852656695a8da69d9ef672ca8947a7eccf644b86751e5f860dfc7d780df8a44", @ANYRES8=r2], 0x14}}, 0x0) (async) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000180)='cgroup.procs\x00', 0x2, 0x0) (async) 12:34:12 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) read$proc_mixer(0xffffffffffffffff, &(0x7f0000000040)=""/72, 0x48) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r3, @ANYRESDEC=r1], 0x14}, 0x1, 0x0, 0x0, 0x80}, 0x0) 12:34:12 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="00010000", @ANYRES16=r2, @ANYBLOB="01000000002000000000030000000c000800ffffff00000000000c00050000010000000000000c0004000100000000000000"], 0x38}, 0x1, 0x0, 0x0, 0x4001}, 0x90) [ 1057.257119] nbd: must specify a device to reconfigure 12:34:12 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="0100000000000010000003000000080001000000000007f9ffffffffffff2f64737000000000"], 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x28, r4, 0x8, 0x70bd2a, 0x6, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4000400000000}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) r7 = socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r7, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000680)=ANY=[@ANYBLOB="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", @ANYRES16=r8, @ANYBLOB="010000000000000000000800000008001700", @ANYRES32, @ANYBLOB="0c000f0000000000000000000500220000000000"], 0x30}}, 0x0) pipe2$watch_queue(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r10 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r11 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000340), r5) sendmsg$NET_DM_CMD_STOP(r10, &(0x7f0000000400)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x14, r11, 0x200, 0x70bd27, 0x25dfdbfe, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x20004000}, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(0xffffffffffffffff, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x50, r8, 0x20, 0x70bd2b, 0x25dfdbfd, {}, [@L2TP_ATTR_IFNAME={0x14, 0x8, 'ip6gretap0\x00'}, @L2TP_ATTR_RECV_SEQ={0x5, 0x12, 0x5}, @L2TP_ATTR_MRU={0x6, 0x1d, 0x3f}, @L2TP_ATTR_UDP_SPORT={0x6, 0x1a, 0x9}, @L2TP_ATTR_SEND_SEQ={0x5, 0x13, 0x3}, @L2TP_ATTR_FD={0x8, 0x17, @udp=r9}]}, 0x50}, 0x1, 0x0, 0x0, 0x20044855}, 0x40004) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r6, 0x1}, 0x14}}, 0x0) 12:34:12 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) read$proc_mixer(0xffffffffffffffff, &(0x7f0000000040)=""/72, 0x48) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r3, @ANYRESDEC=r1], 0x14}, 0x1, 0x0, 0x0, 0x80}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) (async) read$proc_mixer(0xffffffffffffffff, &(0x7f0000000040)=""/72, 0x48) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r3, @ANYRESDEC=r1], 0x14}, 0x1, 0x0, 0x0, 0x80}, 0x0) (async) [ 1057.303217] netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. [ 1057.332069] block nbd0: not configured, cannot reconfigure 12:34:12 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="00010000", @ANYRES16=r2, @ANYBLOB="01000000002000000000030000000c000800ffffff00000000000c00050000010000000000000c0004000100000000000000"], 0x38}, 0x1, 0x0, 0x0, 0x4001}, 0x90) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="00010000", @ANYRES16=r2, @ANYBLOB="01000000002000000000030000000c000800ffffff00000000000c00050000010000000000000c0004000100000000000000"], 0x38}, 0x1, 0x0, 0x0, 0x4001}, 0x90) (async) 12:34:12 executing program 2: ioctl$mixer_OSS_ALSAEMULVER(0xffffffffffffffff, 0x80044df9, &(0x7f0000000000)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$SNDRV_CTL_IOCTL_CARD_INFO(0xffffffffffffffff, 0x81785501, &(0x7f00000000c0)=""/33) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000040)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="8e4cdd1555457624c65c0039fecbd5d3fb223ae1102061e130818b54a06f491b7173ae2181cb1583b9920dd2a566b5c231e0d070934aa114c8016a5424b09b93c6becf6fc40d39be1e56231f161b0293f9109cdf76fce28f52f38223b1d4bd7c831317e61ac004363d8346debe9a1a227a"], 0x14}}, 0x0) [ 1057.352347] nbd: must specify a device to reconfigure [ 1057.378688] netlink: 16 bytes leftover after parsing attributes in process `syz-executor.4'. [ 1057.401391] block nbd0: not configured, cannot reconfigure [ 1057.418683] nbd: must specify a device to reconfigure 12:34:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01bc4cb91c8c2f8af383af933e81"], 0x14}}, 0x0) 12:34:12 executing program 2: ioctl$mixer_OSS_ALSAEMULVER(0xffffffffffffffff, 0x80044df9, &(0x7f0000000000)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$SNDRV_CTL_IOCTL_CARD_INFO(0xffffffffffffffff, 0x81785501, &(0x7f00000000c0)=""/33) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000040)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="8e4cdd1555457624c65c0039fecbd5d3fb223ae1102061e130818b54a06f491b7173ae2181cb1583b9920dd2a566b5c231e0d070934aa114c8016a5424b09b93c6becf6fc40d39be1e56231f161b0293f9109cdf76fce28f52f38223b1d4bd7c831317e61ac004363d8346debe9a1a227a"], 0x14}}, 0x0) ioctl$mixer_OSS_ALSAEMULVER(0xffffffffffffffff, 0x80044df9, &(0x7f0000000000)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) ioctl$SNDRV_CTL_IOCTL_CARD_INFO(0xffffffffffffffff, 0x81785501, &(0x7f00000000c0)=""/33) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000040)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="8e4cdd1555457624c65c0039fecbd5d3fb223ae1102061e130818b54a06f491b7173ae2181cb1583b9920dd2a566b5c231e0d070934aa114c8016a5424b09b93c6becf6fc40d39be1e56231f161b0293f9109cdf76fce28f52f38223b1d4bd7c831317e61ac004363d8346debe9a1a227a"], 0x14}}, 0x0) (async) 12:34:12 executing program 3: ioctl$mixer_OSS_ALSAEMULVER(0xffffffffffffffff, 0x80044df9, &(0x7f0000000000)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$SNDRV_CTL_IOCTL_CARD_INFO(0xffffffffffffffff, 0x81785501, &(0x7f00000000c0)=""/33) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000040)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="8e4cdd1555457624c65c0039fecbd5d3fb223ae1102061e130818b54a06f491b7173ae2181cb1583b9920dd2a566b5c231e0d070934aa114c8016a5424b09b93c6becf6fc40d39be1e56231f161b0293f9109cdf76fce28f52f38223b1d4bd7c831317e61ac004363d8346debe9a1a227a"], 0x14}}, 0x0) 12:34:12 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="0100000000000010000003000000080001000000000007f9ffffffffffff2f64737000000000"], 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x28, r4, 0x8, 0x70bd2a, 0x6, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4000400000000}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) r7 = socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r7, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000680)=ANY=[@ANYBLOB="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", @ANYRES16=r8, @ANYBLOB="010000000000000000000800000008001700", @ANYRES32, @ANYBLOB="0c000f0000000000000000000500220000000000"], 0x30}}, 0x0) pipe2$watch_queue(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r10 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r11 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000340), r5) sendmsg$NET_DM_CMD_STOP(r10, &(0x7f0000000400)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x14, r11, 0x200, 0x70bd27, 0x25dfdbfe, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x20004000}, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(0xffffffffffffffff, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x50, r8, 0x20, 0x70bd2b, 0x25dfdbfd, {}, [@L2TP_ATTR_IFNAME={0x14, 0x8, 'ip6gretap0\x00'}, @L2TP_ATTR_RECV_SEQ={0x5, 0x12, 0x5}, @L2TP_ATTR_MRU={0x6, 0x1d, 0x3f}, @L2TP_ATTR_UDP_SPORT={0x6, 0x1a, 0x9}, @L2TP_ATTR_SEND_SEQ={0x5, 0x13, 0x3}, @L2TP_ATTR_FD={0x8, 0x17, @udp=r9}]}, 0x50}, 0x1, 0x0, 0x0, 0x20044855}, 0x40004) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r6, 0x1}, 0x14}}, 0x0) 12:34:12 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) read$proc_mixer(0xffffffffffffffff, &(0x7f0000000040)=""/72, 0x48) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r3, @ANYRESDEC=r1], 0x14}, 0x1, 0x0, 0x0, 0x80}, 0x0) [ 1057.424959] nbd: must specify a device to reconfigure [ 1057.435485] nbd: must specify a device to reconfigure 12:34:12 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="00010000", @ANYRES16=r2, @ANYBLOB="01000000002000000000030000000c000800ffffff00000000000c00050000010000000000000c0004000100000000000000"], 0x38}, 0x1, 0x0, 0x0, 0x4001}, 0x90) 12:34:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01bc4cb91c8c2f8af383af933e81"], 0x14}}, 0x0) 12:34:12 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01bc4cb91c8c2f8af383af933e81"], 0x14}}, 0x0) 12:34:12 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:12 executing program 2: ioctl$mixer_OSS_ALSAEMULVER(0xffffffffffffffff, 0x80044df9, &(0x7f0000000000)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$SNDRV_CTL_IOCTL_CARD_INFO(0xffffffffffffffff, 0x81785501, &(0x7f00000000c0)=""/33) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000040)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="8e4cdd1555457624c65c0039fecbd5d3fb223ae1102061e130818b54a06f491b7173ae2181cb1583b9920dd2a566b5c231e0d070934aa114c8016a5424b09b93c6becf6fc40d39be1e56231f161b0293f9109cdf76fce28f52f38223b1d4bd7c831317e61ac004363d8346debe9a1a227a"], 0x14}}, 0x0) 12:34:12 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) set_mempolicy(0x3, &(0x7f0000000040)=0x800, 0xfffffffffffffffa) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="010080000000000000000180ffff"], 0x14}}, 0x0) 12:34:12 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="0100000000000010000003000000080001000000000007f9ffffffffffff2f64737000000000"], 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x28, r4, 0x8, 0x70bd2a, 0x6, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4000400000000}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) r7 = socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r7, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000680)=ANY=[@ANYBLOB="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", @ANYRES16=r8, @ANYBLOB="010000000000000000000800000008001700", @ANYRES32, @ANYBLOB="0c000f0000000000000000000500220000000000"], 0x30}}, 0x0) pipe2$watch_queue(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r10 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r11 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000340), r5) sendmsg$NET_DM_CMD_STOP(r10, &(0x7f0000000400)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x14, r11, 0x200, 0x70bd27, 0x25dfdbfe, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x20004000}, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(0xffffffffffffffff, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x50, r8, 0x20, 0x70bd2b, 0x25dfdbfd, {}, [@L2TP_ATTR_IFNAME={0x14, 0x8, 'ip6gretap0\x00'}, @L2TP_ATTR_RECV_SEQ={0x5, 0x12, 0x5}, @L2TP_ATTR_MRU={0x6, 0x1d, 0x3f}, @L2TP_ATTR_UDP_SPORT={0x6, 0x1a, 0x9}, @L2TP_ATTR_SEND_SEQ={0x5, 0x13, 0x3}, @L2TP_ATTR_FD={0x8, 0x17, @udp=r9}]}, 0x50}, 0x1, 0x0, 0x0, 0x20044855}, 0x40004) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r6, 0x1}, 0x14}}, 0x0) 12:34:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01bc4cb91c8c2f8af383af933e81"], 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01bc4cb91c8c2f8af383af933e81"], 0x14}}, 0x0) (async) [ 1057.578033] netlink: 16 bytes leftover after parsing attributes in process `syz-executor.4'. [ 1057.608775] block nbd0: not configured, cannot reconfigure 12:34:13 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:13 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) set_mempolicy(0x3, &(0x7f0000000040)=0x800, 0xfffffffffffffffa) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="010080000000000000000180ffff"], 0x14}}, 0x0) [ 1057.631650] nbd: must specify at least one socket [ 1057.663251] nbd: must specify a device to reconfigure [ 1057.678720] nbd: must specify a device to reconfigure [ 1057.697446] nbd: must specify a device to reconfigure [ 1057.704702] nbd: must specify at least one socket 12:34:13 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x5}, 0x24000880) 12:34:13 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) (async) 12:34:13 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async, rerun: 64) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) (rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:13 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) set_mempolicy(0x3, &(0x7f0000000040)=0x800, 0xfffffffffffffffa) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="010080000000000000000180ffff"], 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) set_mempolicy(0x3, &(0x7f0000000040)=0x800, 0xfffffffffffffffa) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="010080000000000000000180ffff"], 0x14}}, 0x0) (async) 12:34:13 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x58, r2, 0x1, 0xfffffffd, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfff}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x58}}, 0x2000c080) [ 1057.728842] netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. [ 1057.777065] block nbd0: not configured, cannot reconfigure [ 1057.797721] nbd: must specify a device to reconfigure 12:34:13 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r0) sendmsg$NET_DM_CMD_STOP(0xffffffffffffffff, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x5}, 0x24000880) 12:34:13 executing program 3: ioctl$RNDGETENTCNT(0xffffffffffffffff, 0x80045200, &(0x7f0000000100)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000140), r3) sendmsg$NET_DM_CMD_STOP(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000180)={&(0x7f0000000040)={0x14, r4, 0x300, 0x70bd24, 0x25dfdbfc, {}, ["", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4004040}, 0x40000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:13 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) [ 1057.825166] nbd: must specify a device to reconfigure [ 1057.844822] nbd: must specify at least one socket [ 1057.861910] block nbd0: not configured, cannot reconfigure [ 1057.869661] nbd: must specify a device to reconfigure 12:34:13 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:13 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000100)={0xc0, r4, 0x800, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, ']^'}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xfffffffffffffc00}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x99ca}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x104}]}, 0xc0}, 0x1, 0x0, 0x0, 0x4000800}, 0x841) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:13 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) (async) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) (async) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x58, r2, 0x1, 0xfffffffd, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfff}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x58}}, 0x2000c080) [ 1057.889771] nbd: must specify a device to reconfigure 12:34:13 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) sendmsg$NET_DM_CMD_STOP(r3, &(0x7f0000000240)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x14, 0x0, 0x2, 0x70bd27, 0x25dfdbfb, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x40}, 0x800) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) syz_genetlink_get_family_id$net_dm(&(0x7f00000002c0), r5) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) sendmsg$NET_DM_CMD_START(r4, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x800, 0x70bd2d, 0x25dfdbff, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4044000}, 0x24004804) 12:34:13 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000000400)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x402}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x38, r1, 0x1, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x21}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffffa}]}, 0x38}, 0x1, 0x0, 0x0, 0x20000004}, 0x20040010) r6 = bpf$MAP_CREATE(0x0, &(0x7f0000000440)=@bloom_filter={0x1e, 0x3, 0x3, 0x0, 0xc4, 0xffffffffffffffff, 0x101, '\x00', 0x0, 0xffffffffffffffff, 0x4, 0x2, 0x5, 0x6}, 0x48) bpf$MAP_UPDATE_ELEM(0x2, &(0x7f0000000500)={r6, &(0x7f0000000680)="7b330d16e3c63c8734ec1274c1d0c326e00ab8490d0397c7d07daebdb0517e87cee31c1719542f296450c591c68e801f6c9f0719efa2b6e0421c99efaec6502f2f50db3f1da842873a46a9b3ac5ad1fec4213d3d91136e875c49f53d46a933b90059283c5363962a4d7d1dd7eb9b42e3e3f15961e9c0b57b87ffecd1f077cff17efe61f407a1294474eb157998afbbdefa55dc262577f144ae056fca164440a5e61b197aab3d91ac101fea1c839b2e154031891988f1b1d441f777bd4d67a6f758bcca51b914b5397844e4854b56b112d285adddf8f9514d", &(0x7f00000004c0)=@tcp6, 0x2}, 0x20) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000780)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000003000000"], 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r8) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r9, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x34, r9, 0x20, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x34}, 0x1, 0x0, 0x0, 0x44000000}, 0x44840) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) [ 1057.946324] nbd: must specify a device to reconfigure 12:34:13 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' aWj', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000000c0008000000000000000000"], 0x20}}, 0x90) 12:34:13 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x58, r2, 0x1, 0xfffffffd, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfff}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x58}}, 0x2000c080) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x58, r2, 0x1, 0xfffffffd, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfff}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x58}}, 0x2000c080) (async) 12:34:13 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x5}, 0x24000880) [ 1057.989286] nbd: must specify a device to reconfigure [ 1058.008518] block nbd0: not configured, cannot reconfigure [ 1058.026485] nbd: must specify a device to reconfigure [ 1058.033443] nbd: must specify a device to reconfigure 12:34:13 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x50, r2, 0x4, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1000000}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x3}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '//!}(\\:\\&'}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x80}, 0x20000000) 12:34:13 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' aWj', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000000c0008000000000000000000"], 0x20}}, 0x90) 12:34:13 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async, rerun: 32) sendmsg$NET_DM_CMD_STOP(r3, &(0x7f0000000240)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x14, 0x0, 0x2, 0x70bd27, 0x25dfdbfb, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x40}, 0x800) (async, rerun: 32) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) (async) syz_genetlink_get_family_id$net_dm(&(0x7f00000002c0), r5) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) (async) sendmsg$NET_DM_CMD_START(r4, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x800, 0x70bd2d, 0x25dfdbff, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4044000}, 0x24004804) [ 1058.046942] nbd: must specify at least one socket 12:34:13 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) munlockall() sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010000000000000000fd0300001f86dc2a1a3e89000c00000000"], 0x20}}, 0x90) [ 1058.080045] block nbd4: not configured, cannot reconfigure [ 1058.108892] nbd: must specify a device to reconfigure 12:34:13 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' aWj', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000000c0008000000000000000000"], 0x20}}, 0x90) [ 1058.135466] nbd: must specify a device to reconfigure [ 1058.144359] nbd: must specify a device to reconfigure [ 1058.151759] block nbd0: not configured, cannot reconfigure 12:34:13 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async) sendmsg$NET_DM_CMD_STOP(r3, &(0x7f0000000240)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x14, 0x0, 0x2, 0x70bd27, 0x25dfdbfb, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x40}, 0x800) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) (async) syz_genetlink_get_family_id$net_dm(&(0x7f00000002c0), r5) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) (async) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) sendmsg$NET_DM_CMD_START(r4, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x800, 0x70bd2d, 0x25dfdbff, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4044000}, 0x24004804) 12:34:13 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x50, r2, 0x4, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1000000}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x3}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '//!}(\\:\\&'}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x80}, 0x20000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x50, r2, 0x4, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1000000}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x3}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '//!}(\\:\\&'}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x80}, 0x20000000) (async) 12:34:13 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000000400)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x402}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x38, r1, 0x1, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x21}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffffa}]}, 0x38}, 0x1, 0x0, 0x0, 0x20000004}, 0x20040010) r6 = bpf$MAP_CREATE(0x0, &(0x7f0000000440)=@bloom_filter={0x1e, 0x3, 0x3, 0x0, 0xc4, 0xffffffffffffffff, 0x101, '\x00', 0x0, 0xffffffffffffffff, 0x4, 0x2, 0x5, 0x6}, 0x48) bpf$MAP_UPDATE_ELEM(0x2, &(0x7f0000000500)={r6, &(0x7f0000000680)="7b330d16e3c63c8734ec1274c1d0c326e00ab8490d0397c7d07daebdb0517e87cee31c1719542f296450c591c68e801f6c9f0719efa2b6e0421c99efaec6502f2f50db3f1da842873a46a9b3ac5ad1fec4213d3d91136e875c49f53d46a933b90059283c5363962a4d7d1dd7eb9b42e3e3f15961e9c0b57b87ffecd1f077cff17efe61f407a1294474eb157998afbbdefa55dc262577f144ae056fca164440a5e61b197aab3d91ac101fea1c839b2e154031891988f1b1d441f777bd4d67a6f758bcca51b914b5397844e4854b56b112d285adddf8f9514d", &(0x7f00000004c0)=@tcp6, 0x2}, 0x20) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000780)=ANY=[@ANYBLOB="14f3ff0072a9238b0963ccb1c54660c192efef4699ab9ba93a90eb7a0dd637819006a769af4eb49f392fbba8ceb26c1fdde09d72e6fef3179026bae8bb9e911e898f0a5a9804260560d9f7c2ca613a14f1fb5d21d3886cb26a07000000fb4716419ed20a124a59ca1190f562b529d9b4891a81d4c6dc7d8c9cfae4cdbe412854063367114c0065e9c8598d8efac1f253b5b1f9114975998d046935c06febf64630e5d36ba1192f8b4744f6d2a7011ba27333377918333f5453c2d2c88f47ccf05922a8a4d3a0d254e0ff4841069414e3b66784d54b770795eecb62331ac7f08396154f6fa6040dc84437e865ab10b1946e30b88a4d8576d7f6ea", @ANYRES16=0x0, @ANYBLOB="0000000000000000000003000000"], 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r8) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r9, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x34, r9, 0x20, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x34}, 0x1, 0x0, 0x0, 0x44000000}, 0x44840) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) 12:34:13 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$TIOCSWINSZ(0xffffffffffffffff, 0x5414, &(0x7f0000000000)={0x5, 0x8, 0x66a7}) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) [ 1058.178146] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 1058.242035] nbd: must specify a device to reconfigure 12:34:13 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x200, 0x70bd2d, 0x25dfdbfd, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4004840}, 0x20000800) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:13 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) munlockall() sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010000000000000000fd0300001f86dc2a1a3e89000c00000000"], 0x20}}, 0x90) [ 1058.266590] nbd: must specify a device to reconfigure [ 1058.286049] nbd: must specify a device to reconfigure [ 1058.296156] nbd: must specify at least one socket 12:34:13 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)={0x14, r2, 0x1, 0x4}, 0x14}}, 0x0) 12:34:13 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x50, r2, 0x4, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1000000}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x3}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '//!}(\\:\\&'}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x80}, 0x20000000) [ 1058.312754] nbd: must specify a device to reconfigure [ 1058.329427] nbd: must specify a device to reconfigure [ 1058.350428] nbd: must specify a device to reconfigure [ 1058.358679] block nbd4: not configured, cannot reconfigure 12:34:13 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$TIOCSWINSZ(0xffffffffffffffff, 0x5414, &(0x7f0000000000)={0x5, 0x8, 0x66a7}) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:13 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x200, 0x70bd2d, 0x25dfdbfd, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4004840}, 0x20000800) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x200, 0x70bd2d, 0x25dfdbfd, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4004840}, 0x20000800) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) (async) [ 1058.372702] nbd: must specify a device to reconfigure 12:34:13 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000000400)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x402}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x38, r1, 0x1, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x21}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffffa}]}, 0x38}, 0x1, 0x0, 0x0, 0x20000004}, 0x20040010) r6 = bpf$MAP_CREATE(0x0, &(0x7f0000000440)=@bloom_filter={0x1e, 0x3, 0x3, 0x0, 0xc4, 0xffffffffffffffff, 0x101, '\x00', 0x0, 0xffffffffffffffff, 0x4, 0x2, 0x5, 0x6}, 0x48) bpf$MAP_UPDATE_ELEM(0x2, &(0x7f0000000500)={r6, &(0x7f0000000680)="7b330d16e3c63c8734ec1274c1d0c326e00ab8490d0397c7d07daebdb0517e87cee31c1719542f296450c591c68e801f6c9f0719efa2b6e0421c99efaec6502f2f50db3f1da842873a46a9b3ac5ad1fec4213d3d91136e875c49f53d46a933b90059283c5363962a4d7d1dd7eb9b42e3e3f15961e9c0b57b87ffecd1f077cff17efe61f407a1294474eb157998afbbdefa55dc262577f144ae056fca164440a5e61b197aab3d91ac101fea1c839b2e154031891988f1b1d441f777bd4d67a6f758bcca51b914b5397844e4854b56b112d285adddf8f9514d", &(0x7f00000004c0)=@tcp6, 0x2}, 0x20) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000780)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000003000000"], 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r8) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r9, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x34, r9, 0x20, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x34}, 0x1, 0x0, 0x0, 0x44000000}, 0x44840) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) [ 1058.403094] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 1058.434381] nbd: must specify a device to reconfigure [ 1058.442422] nbd: must specify a device to reconfigure 12:34:13 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)={0x14, r2, 0x1, 0x4}, 0x14}}, 0x0) 12:34:13 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x4c, r4, 0x400, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x4c}, 0x1, 0x0, 0x0, 0x1}, 0x81) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x74, r2, 0x4, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '\\+\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3a71478b}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x74}, 0x1, 0x0, 0x0, 0x1}, 0x20000000) 12:34:13 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) munlockall() sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010000000000000000fd0300001f86dc2a1a3e89000c00000000"], 0x20}}, 0x90) [ 1058.448802] nbd: must specify a device to reconfigure [ 1058.455334] nbd: must specify a device to reconfigure [ 1058.479412] nbd: must specify a device to reconfigure 12:34:13 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) ioctl$TIOCSWINSZ(0xffffffffffffffff, 0x5414, &(0x7f0000000000)={0x5, 0x8, 0x66a7}) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:13 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x200, 0x70bd2d, 0x25dfdbfd, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4004840}, 0x20000800) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) [ 1058.499389] nbd: must specify a device to reconfigure [ 1058.516469] nbd: must specify at least one socket [ 1058.540957] block nbd4: not configured, cannot reconfigure 12:34:13 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)={0x14, r2, 0x1, 0x4}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)={0x14, r2, 0x1, 0x4}, 0x14}}, 0x0) (async) 12:34:13 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000000400)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x402}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x38, r1, 0x1, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x21}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffffa}]}, 0x38}, 0x1, 0x0, 0x0, 0x20000004}, 0x20040010) r6 = bpf$MAP_CREATE(0x0, &(0x7f0000000440)=@bloom_filter={0x1e, 0x3, 0x3, 0x0, 0xc4, 0xffffffffffffffff, 0x101, '\x00', 0x0, 0xffffffffffffffff, 0x4, 0x2, 0x5, 0x6}, 0x48) bpf$MAP_UPDATE_ELEM(0x2, &(0x7f0000000500)={r6, &(0x7f0000000680)="7b330d16e3c63c8734ec1274c1d0c326e00ab8490d0397c7d07daebdb0517e87cee31c1719542f296450c591c68e801f6c9f0719efa2b6e0421c99efaec6502f2f50db3f1da842873a46a9b3ac5ad1fec4213d3d91136e875c49f53d46a933b90059283c5363962a4d7d1dd7eb9b42e3e3f15961e9c0b57b87ffecd1f077cff17efe61f407a1294474eb157998afbbdefa55dc262577f144ae056fca164440a5e61b197aab3d91ac101fea1c839b2e154031891988f1b1d441f777bd4d67a6f758bcca51b914b5397844e4854b56b112d285adddf8f9514d", &(0x7f00000004c0)=@tcp6, 0x2}, 0x20) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000780)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000003000000"], 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r8) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r9, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) 12:34:13 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) [ 1058.567547] nbd: must specify a device to reconfigure [ 1058.577491] nbd: must specify a device to reconfigure [ 1058.583351] nbd: must specify a device to reconfigure [ 1058.589624] nbd: must specify a device to reconfigure [ 1058.598119] nbd: must specify a device to reconfigure 12:34:14 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x4c, r4, 0x400, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x4c}, 0x1, 0x0, 0x0, 0x1}, 0x81) (async) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) (async) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x74, r2, 0x4, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '\\+\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3a71478b}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x74}, 0x1, 0x0, 0x0, 0x1}, 0x20000000) 12:34:14 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[], 0x20}}, 0x90) 12:34:14 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) munlockall() [ 1058.625579] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 1058.645080] nbd: must specify a device to reconfigure [ 1058.694907] nbd: must specify at least one socket [ 1058.707165] nbd: must specify a device to reconfigure [ 1058.719780] block nbd4: not configured, cannot reconfigure [ 1058.728626] nbd: must specify a device to reconfigure 12:34:14 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[], 0x20}}, 0x90) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[], 0x20}}, 0x90) (async) 12:34:14 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) [ 1058.746293] nbd: must specify a device to reconfigure 12:34:14 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000000400)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x402}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x38, r1, 0x1, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x21}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffffa}]}, 0x38}, 0x1, 0x0, 0x0, 0x20000004}, 0x20040010) r6 = bpf$MAP_CREATE(0x0, &(0x7f0000000440)=@bloom_filter={0x1e, 0x3, 0x3, 0x0, 0xc4, 0xffffffffffffffff, 0x101, '\x00', 0x0, 0xffffffffffffffff, 0x4, 0x2, 0x5, 0x6}, 0x48) bpf$MAP_UPDATE_ELEM(0x2, &(0x7f0000000500)={r6, &(0x7f0000000680)="7b330d16e3c63c8734ec1274c1d0c326e00ab8490d0397c7d07daebdb0517e87cee31c1719542f296450c591c68e801f6c9f0719efa2b6e0421c99efaec6502f2f50db3f1da842873a46a9b3ac5ad1fec4213d3d91136e875c49f53d46a933b90059283c5363962a4d7d1dd7eb9b42e3e3f15961e9c0b57b87ffecd1f077cff17efe61f407a1294474eb157998afbbdefa55dc262577f144ae056fca164440a5e61b197aab3d91ac101fea1c839b2e154031891988f1b1d441f777bd4d67a6f758bcca51b914b5397844e4854b56b112d285adddf8f9514d", &(0x7f00000004c0)=@tcp6, 0x2}, 0x20) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000780)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000003000000"], 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r7) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) 12:34:14 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) 12:34:14 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = bpf$ITER_CREATE(0x21, &(0x7f0000000080)={r3}, 0x8) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000100)={0x80, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x109}, @NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6e465148}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xc85}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x80}}, 0x50) 12:34:14 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x4c, r4, 0x400, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x4c}, 0x1, 0x0, 0x0, 0x1}, 0x81) (async) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x74, r2, 0x4, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '\\+\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3a71478b}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x74}, 0x1, 0x0, 0x0, 0x1}, 0x20000000) [ 1058.768935] nbd: must specify a device to reconfigure [ 1058.775670] nbd: must specify a device to reconfigure 12:34:14 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (async) 12:34:14 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[], 0x20}}, 0x90) [ 1058.837080] nbd: must specify a device to reconfigure [ 1058.867067] nbd: must specify at least one socket [ 1058.884678] nbd: must specify a device to reconfigure 12:34:14 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000000400)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x402}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x38, r1, 0x1, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x21}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffffa}]}, 0x38}, 0x1, 0x0, 0x0, 0x20000004}, 0x20040010) r6 = bpf$MAP_CREATE(0x0, &(0x7f0000000440)=@bloom_filter={0x1e, 0x3, 0x3, 0x0, 0xc4, 0xffffffffffffffff, 0x101, '\x00', 0x0, 0xffffffffffffffff, 0x4, 0x2, 0x5, 0x6}, 0x48) bpf$MAP_UPDATE_ELEM(0x2, &(0x7f0000000500)={r6, &(0x7f0000000680)="7b330d16e3c63c8734ec1274c1d0c326e00ab8490d0397c7d07daebdb0517e87cee31c1719542f296450c591c68e801f6c9f0719efa2b6e0421c99efaec6502f2f50db3f1da842873a46a9b3ac5ad1fec4213d3d91136e875c49f53d46a933b90059283c5363962a4d7d1dd7eb9b42e3e3f15961e9c0b57b87ffecd1f077cff17efe61f407a1294474eb157998afbbdefa55dc262577f144ae056fca164440a5e61b197aab3d91ac101fea1c839b2e154031891988f1b1d441f777bd4d67a6f758bcca51b914b5397844e4854b56b112d285adddf8f9514d", &(0x7f00000004c0)=@tcp6, 0x2}, 0x20) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000780)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000003000000"], 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) 12:34:14 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = bpf$ITER_CREATE(0x21, &(0x7f0000000080)={r3}, 0x8) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000100)={0x80, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x109}, @NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6e465148}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xc85}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x80}}, 0x50) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) (async) bpf$ITER_CREATE(0x21, &(0x7f0000000080)={r3}, 0x8) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000100)={0x80, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x109}, @NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6e465148}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xc85}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x80}}, 0x50) (async) 12:34:14 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 12:34:14 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x4000000, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x0, 0x2, 0xff}]}, 0x20}}, 0x90) syz_open_dev$audion(&(0x7f0000000000), 0x6, 0x20600) [ 1058.907602] block nbd5: not configured, cannot reconfigure [ 1058.929149] nbd: must specify a device to reconfigure [ 1058.936184] nbd: must specify a device to reconfigure [ 1058.965901] nbd: must specify a device to reconfigure 12:34:14 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0700000000000000000003000000"], 0x14}}, 0x0) [ 1059.007420] block nbd5: not configured, cannot reconfigure [ 1059.041891] nbd: must specify at least one socket 12:34:14 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = bpf$ITER_CREATE(0x21, &(0x7f0000000080)={r3}, 0x8) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000100)={0x80, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x109}, @NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6e465148}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xc85}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x80}}, 0x50) [ 1059.062266] nbd: must specify a device to reconfigure 12:34:14 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x200, 0x70bd27, 0x25dfdbfe, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0xc080}, 0x8004) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = getpid() r3 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000140), r1) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x1030a00}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x14, r3, 0x8, 0x70bd2c, 0x25dfdbfb, {}, ["", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x20000800}, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f00000007c0)={&(0x7f0000000700)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000780)={&(0x7f0000000740)={0x38, 0x0, 0x200, 0x70bd2c, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x26}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x114}]}, 0x38}, 0x1, 0x0, 0x0, 0x4040000}, 0x48000) sched_getattr(r2, &(0x7f0000002840)={0x38}, 0x38, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_STOP(r4, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x14, r3, 0x100, 0x70bd2c, 0x25dfdbfd, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4000090}, 0x84) getpriority(0x1, r2) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r6) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000800)=ANY=[@ANYBLOB="44782447f8c15d0a47eee014d0080000", @ANYRES16=r7, @ANYBLOB="040025bd7000fddbdf25050000000c00050000000000000000000c00040051210000000000000c00080020000000000000000c00030000e0ff0f00000000"], 0x44}, 0x1, 0x0, 0x0, 0x44084}, 0x20000040) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r8 = syz_genetlink_get_family_id$nbd(&(0x7f00000004c0), r1) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000680)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000005c0)={&(0x7f0000000500)={0x2c, r8, 0x20, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x2c}, 0x1, 0x0, 0x0, 0x2000c000}, 0xc5) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000006c0)=ANY=[@ANYBLOB="00c71027b0e7b4a51227941123000000", @ANYRES8=r6, @ANYBLOB="f80200007e"], 0x14}}, 0x20000001) 12:34:14 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000000400)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x402}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x38, r1, 0x1, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x21}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffffa}]}, 0x38}, 0x1, 0x0, 0x0, 0x20000004}, 0x20040010) r6 = bpf$MAP_CREATE(0x0, &(0x7f0000000440)=@bloom_filter={0x1e, 0x3, 0x3, 0x0, 0xc4, 0xffffffffffffffff, 0x101, '\x00', 0x0, 0xffffffffffffffff, 0x4, 0x2, 0x5, 0x6}, 0x48) bpf$MAP_UPDATE_ELEM(0x2, &(0x7f0000000500)={r6, &(0x7f0000000680)="7b330d16e3c63c8734ec1274c1d0c326e00ab8490d0397c7d07daebdb0517e87cee31c1719542f296450c591c68e801f6c9f0719efa2b6e0421c99efaec6502f2f50db3f1da842873a46a9b3ac5ad1fec4213d3d91136e875c49f53d46a933b90059283c5363962a4d7d1dd7eb9b42e3e3f15961e9c0b57b87ffecd1f077cff17efe61f407a1294474eb157998afbbdefa55dc262577f144ae056fca164440a5e61b197aab3d91ac101fea1c839b2e154031891988f1b1d441f777bd4d67a6f758bcca51b914b5397844e4854b56b112d285adddf8f9514d", &(0x7f00000004c0)=@tcp6, 0x2}, 0x20) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000780)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000003000000"], 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) 12:34:14 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) [ 1059.084149] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. [ 1059.112745] nbd: must specify a device to reconfigure [ 1059.125943] nbd: must specify a device to reconfigure 12:34:14 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x4000000, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x0, 0x2, 0xff}]}, 0x20}}, 0x90) syz_open_dev$audion(&(0x7f0000000000), 0x6, 0x20600) 12:34:14 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0700000000000000000003000000"], 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0700000000000000000003000000"], 0x14}}, 0x0) (async) [ 1059.144361] block nbd2: not configured, cannot reconfigure 12:34:14 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x200, 0x70bd27, 0x25dfdbfe, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0xc080}, 0x8004) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = getpid() r3 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000140), r1) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x1030a00}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x14, r3, 0x8, 0x70bd2c, 0x25dfdbfb, {}, ["", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x20000800}, 0x10) (async) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f00000007c0)={&(0x7f0000000700)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000780)={&(0x7f0000000740)={0x38, 0x0, 0x200, 0x70bd2c, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x26}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x114}]}, 0x38}, 0x1, 0x0, 0x0, 0x4040000}, 0x48000) (async) sched_getattr(r2, &(0x7f0000002840)={0x38}, 0x38, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_STOP(r4, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x14, r3, 0x100, 0x70bd2c, 0x25dfdbfd, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4000090}, 0x84) getpriority(0x1, r2) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r6) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000800)=ANY=[@ANYBLOB="44782447f8c15d0a47eee014d0080000", @ANYRES16=r7, @ANYBLOB="040025bd7000fddbdf25050000000c00050000000000000000000c00040051210000000000000c00080020000000000000000c00030000e0ff0f00000000"], 0x44}, 0x1, 0x0, 0x0, 0x44084}, 0x20000040) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r8 = syz_genetlink_get_family_id$nbd(&(0x7f00000004c0), r1) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000680)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000005c0)={&(0x7f0000000500)={0x2c, r8, 0x20, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x2c}, 0x1, 0x0, 0x0, 0x2000c000}, 0xc5) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000006c0)=ANY=[@ANYBLOB="00c71027b0e7b4a51227941123000000", @ANYRES8=r6, @ANYBLOB="f80200007e"], 0x14}}, 0x20000001) 12:34:14 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100ed0003000000000000000000"], 0x14}}, 0x0) [ 1059.188478] nbd: must specify at least one socket 12:34:14 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000000400)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x402}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x38, r1, 0x1, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x21}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffffa}]}, 0x38}, 0x1, 0x0, 0x0, 0x20000004}, 0x20040010) r6 = bpf$MAP_CREATE(0x0, &(0x7f0000000440)=@bloom_filter={0x1e, 0x3, 0x3, 0x0, 0xc4, 0xffffffffffffffff, 0x101, '\x00', 0x0, 0xffffffffffffffff, 0x4, 0x2, 0x5, 0x6}, 0x48) bpf$MAP_UPDATE_ELEM(0x2, &(0x7f0000000500)={r6, &(0x7f0000000680)="7b330d16e3c63c8734ec1274c1d0c326e00ab8490d0397c7d07daebdb0517e87cee31c1719542f296450c591c68e801f6c9f0719efa2b6e0421c99efaec6502f2f50db3f1da842873a46a9b3ac5ad1fec4213d3d91136e875c49f53d46a933b90059283c5363962a4d7d1dd7eb9b42e3e3f15961e9c0b57b87ffecd1f077cff17efe61f407a1294474eb157998afbbdefa55dc262577f144ae056fca164440a5e61b197aab3d91ac101fea1c839b2e154031891988f1b1d441f777bd4d67a6f758bcca51b914b5397844e4854b56b112d285adddf8f9514d", &(0x7f00000004c0)=@tcp6, 0x2}, 0x20) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000780)=ANY=[@ANYBLOB="14f3ff0072a9238b0963ccb1c54660c192efef4699ab9ba93a90eb7a0dd637819006a769af4eb49f392fbba8ceb26c1fdde09d72e6fef3179026bae8bb9e911e898f0a5a9804260560d9f7c2ca613a14f1fb5d21d3886cb26a07000000fb4716419ed20a124a59ca1190f562b529d9b4891a81d4c6dc7d8c9cfae4cdbe412854063367114c0065e9c8598d8efac1f253b5b1f9114975998d046935c06febf64630e5d36ba1192f8b4744f6d2a7011ba27333377918333f5453c2d2c88f47ccf05922a8a4d3a0d254e0ff4841069414e3b66784d54b770795eecb62331ac7f08396154f6fa6040dc84437e865ab10b1946e30b88a4d8576d7f6ea", @ANYRES16=0x0, @ANYBLOB="0000000000000000000003000000"], 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) [ 1059.231521] nbd: must specify a device to reconfigure [ 1059.237037] nbd: must specify a device to reconfigure [ 1059.246408] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. [ 1059.260697] nbd: must specify a device to reconfigure [ 1059.272053] nbd: must specify a device to reconfigure 12:34:14 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100ed0003000000000000000000"], 0x14}}, 0x0) 12:34:14 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, 0x0, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:14 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0700000000000000000003000000"], 0x14}}, 0x0) 12:34:14 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x4000000, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x0, 0x2, 0xff}]}, 0x20}}, 0x90) (async) syz_open_dev$audion(&(0x7f0000000000), 0x6, 0x20600) 12:34:14 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000000400)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x402}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x38, r1, 0x1, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x21}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffffa}]}, 0x38}, 0x1, 0x0, 0x0, 0x20000004}, 0x20040010) r6 = bpf$MAP_CREATE(0x0, &(0x7f0000000440)=@bloom_filter={0x1e, 0x3, 0x3, 0x0, 0xc4, 0xffffffffffffffff, 0x101, '\x00', 0x0, 0xffffffffffffffff, 0x4, 0x2, 0x5, 0x6}, 0x48) bpf$MAP_UPDATE_ELEM(0x2, &(0x7f0000000500)={r6, &(0x7f0000000680)="7b330d16e3c63c8734ec1274c1d0c326e00ab8490d0397c7d07daebdb0517e87cee31c1719542f296450c591c68e801f6c9f0719efa2b6e0421c99efaec6502f2f50db3f1da842873a46a9b3ac5ad1fec4213d3d91136e875c49f53d46a933b90059283c5363962a4d7d1dd7eb9b42e3e3f15961e9c0b57b87ffecd1f077cff17efe61f407a1294474eb157998afbbdefa55dc262577f144ae056fca164440a5e61b197aab3d91ac101fea1c839b2e154031891988f1b1d441f777bd4d67a6f758bcca51b914b5397844e4854b56b112d285adddf8f9514d", &(0x7f00000004c0)=@tcp6, 0x2}, 0x20) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000780)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000003000000"], 0x14}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) 12:34:14 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x200, 0x70bd27, 0x25dfdbfe, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0xc080}, 0x8004) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = getpid() (async) r3 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000140), r1) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x1030a00}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x14, r3, 0x8, 0x70bd2c, 0x25dfdbfb, {}, ["", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x20000800}, 0x10) (async) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f00000007c0)={&(0x7f0000000700)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000780)={&(0x7f0000000740)={0x38, 0x0, 0x200, 0x70bd2c, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x26}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x114}]}, 0x38}, 0x1, 0x0, 0x0, 0x4040000}, 0x48000) (async) sched_getattr(r2, &(0x7f0000002840)={0x38}, 0x38, 0x0) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_STOP(r4, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x14, r3, 0x100, 0x70bd2c, 0x25dfdbfd, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4000090}, 0x84) (async) getpriority(0x1, r2) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r6) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000800)=ANY=[@ANYBLOB="44782447f8c15d0a47eee014d0080000", @ANYRES16=r7, @ANYBLOB="040025bd7000fddbdf25050000000c00050000000000000000000c00040051210000000000000c00080020000000000000000c00030000e0ff0f00000000"], 0x44}, 0x1, 0x0, 0x0, 0x44084}, 0x20000040) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r8 = syz_genetlink_get_family_id$nbd(&(0x7f00000004c0), r1) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000680)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000005c0)={&(0x7f0000000500)={0x2c, r8, 0x20, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x2c}, 0x1, 0x0, 0x0, 0x2000c000}, 0xc5) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000006c0)=ANY=[@ANYBLOB="00c71027b0e7b4a51227941123000000", @ANYRES8=r6, @ANYBLOB="f80200007e"], 0x14}}, 0x20000001) [ 1059.286811] nbd: must specify at least one socket [ 1059.292991] nbd: must specify a device to reconfigure [ 1059.318222] block nbd2: not configured, cannot reconfigure 12:34:14 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100ed0003000000000000000000"], 0x14}}, 0x0) 12:34:14 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, 0x0, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:14 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r1, 0x0, 0x0) r2 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r2, 0x0, 0x0) bpf$BPF_LINK_UPDATE(0x1d, &(0x7f0000000000)={0xffffffffffffffff, r1, 0x4, r2}, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:14 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) write$proc_mixer(r3, &(0x7f0000000000)=[{'CD', @val={' \'', 'CD Capture'}}, {'DIGITAL2', @void}, {'IMIX', @void}, {'PCM', @val={' \'', 'CD Capture Switch'}}, {'LINE1', @void}, {'IGAIN', @void}], 0x6c) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14001300", @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) process_vm_readv(0x0, &(0x7f0000000300)=[{&(0x7f0000000080)=""/219, 0xdb}, {&(0x7f0000000180)=""/144, 0x90}, {&(0x7f0000000240)=""/169, 0xa9}], 0x3, &(0x7f0000000340)=[{&(0x7f0000000400)=""/228, 0xe4}], 0x1, 0x0) 12:34:14 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, 0x0, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) [ 1059.435153] nbd: must specify at least one socket 12:34:14 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000400)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x402}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x38, r1, 0x1, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x21}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffffa}]}, 0x38}, 0x1, 0x0, 0x0, 0x20000004}, 0x20040010) r5 = bpf$MAP_CREATE(0x0, &(0x7f0000000440)=@bloom_filter={0x1e, 0x3, 0x3, 0x0, 0xc4, 0xffffffffffffffff, 0x101, '\x00', 0x0, 0xffffffffffffffff, 0x4, 0x2, 0x5, 0x6}, 0x48) bpf$MAP_UPDATE_ELEM(0x2, &(0x7f0000000500)={r5, &(0x7f0000000680)="7b330d16e3c63c8734ec1274c1d0c326e00ab8490d0397c7d07daebdb0517e87cee31c1719542f296450c591c68e801f6c9f0719efa2b6e0421c99efaec6502f2f50db3f1da842873a46a9b3ac5ad1fec4213d3d91136e875c49f53d46a933b90059283c5363962a4d7d1dd7eb9b42e3e3f15961e9c0b57b87ffecd1f077cff17efe61f407a1294474eb157998afbbdefa55dc262577f144ae056fca164440a5e61b197aab3d91ac101fea1c839b2e154031891988f1b1d441f777bd4d67a6f758bcca51b914b5397844e4854b56b112d285adddf8f9514d", &(0x7f00000004c0)=@tcp6, 0x2}, 0x20) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) 12:34:14 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r1, 0x0, 0x0) r2 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r2, 0x0, 0x0) bpf$BPF_LINK_UPDATE(0x1d, &(0x7f0000000000)={0xffffffffffffffff, r1, 0x4, r2}, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r1, 0x0, 0x0) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r2, 0x0, 0x0) (async) bpf$BPF_LINK_UPDATE(0x1d, &(0x7f0000000000)={0xffffffffffffffff, r1, 0x4, r2}, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) (async) [ 1059.461320] nbd: must specify a device to reconfigure [ 1059.480391] nbd: must specify a device to reconfigure [ 1059.496826] block nbd2: not configured, cannot reconfigure 12:34:14 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) (async) write$proc_mixer(r3, &(0x7f0000000000)=[{'CD', @val={' \'', 'CD Capture'}}, {'DIGITAL2', @void}, {'IMIX', @void}, {'PCM', @val={' \'', 'CD Capture Switch'}}, {'LINE1', @void}, {'IGAIN', @void}], 0x6c) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14001300", @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) (async) process_vm_readv(0x0, &(0x7f0000000300)=[{&(0x7f0000000080)=""/219, 0xdb}, {&(0x7f0000000180)=""/144, 0x90}, {&(0x7f0000000240)=""/169, 0xa9}], 0x3, &(0x7f0000000340)=[{&(0x7f0000000400)=""/228, 0xe4}], 0x1, 0x0) 12:34:14 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="05a083d8874d1c5f4d6981000000b5", @ANYRES16=r3, @ANYBLOB="010000000000000000000300000008000100000000000d000a002f6465762f64737000000000"], 0x2c}}, 0x0) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000040)={0x28, r3, 0x1, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r4}]}]}, 0x28}, 0x1, 0x0, 0x0, 0x80}, 0x0) 12:34:14 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:14 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f00000000c0), 0xffffffffffffffff) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000140)=ANY=[@ANYBLOB="8623f9bb9addf6b4fd63881ce5b0f0fb3ba30c50784e558f4abf480750b182adedf373947520c928b313b9ed000903bafebe90cbef0e6e1b293d7359903f71ee69ee22cfeffeec18c529c0a66f37e4c161698d2cd8cfa03d56dcb3f7f11f2567a619d595665a7fb2a787bfd70fbc90893f05031d4db58c2bd85d42a968165c392e92c5c08fb1fa62533b6de2b0f9fe8415da2c8aa8b0b8b5d472eb44a1b022c440930592154cb678bff7f243f0c6758ae5361bfadb25a04ee9572294fb87f9472dc62942b0cfb400fafe44b819595da5f7ca6379fc835b441ad9c68b3799ff52c5b092c7a588d7a3db31", @ANYRES16=r3, @ANYBLOB="010000000000000000000300000008000100000000000d000a002f6465762f64737000000000"], 0x2c}, 0x1, 0x0, 0x0, 0x44}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x2c, r3, 0x400, 0x70bd28, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0x0, 0x2, 0xfff}]}, 0x7}, 0x1, 0x0, 0x0, 0x400c884}, 0x40091) getpriority(0x0, 0x0) 12:34:15 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000400)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x402}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x38, r1, 0x1, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x21}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffffa}]}, 0x38}, 0x1, 0x0, 0x0, 0x20000004}, 0x20040010) bpf$MAP_CREATE(0x0, &(0x7f0000000440)=@bloom_filter={0x1e, 0x3, 0x3, 0x0, 0xc4, 0xffffffffffffffff, 0x101, '\x00', 0x0, 0xffffffffffffffff, 0x4, 0x2, 0x5, 0x6}, 0x48) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) [ 1059.584802] nbd: must specify at least one socket [ 1059.601843] nbd: must specify a device to reconfigure [ 1059.612655] nbd: must specify a device to reconfigure 12:34:15 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r1, 0x0, 0x0) (async) r2 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r2, 0x0, 0x0) bpf$BPF_LINK_UPDATE(0x1d, &(0x7f0000000000)={0xffffffffffffffff, r1, 0x4, r2}, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:15 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) [ 1059.650747] nbd: must specify a device to reconfigure 12:34:15 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) write$proc_mixer(r3, &(0x7f0000000000)=[{'CD', @val={' \'', 'CD Capture'}}, {'DIGITAL2', @void}, {'IMIX', @void}, {'PCM', @val={' \'', 'CD Capture Switch'}}, {'LINE1', @void}, {'IGAIN', @void}], 0x6c) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14001300", @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) process_vm_readv(0x0, &(0x7f0000000300)=[{&(0x7f0000000080)=""/219, 0xdb}, {&(0x7f0000000180)=""/144, 0x90}, {&(0x7f0000000240)=""/169, 0xa9}], 0x3, &(0x7f0000000340)=[{&(0x7f0000000400)=""/228, 0xe4}], 0x1, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) (async) write$proc_mixer(r3, &(0x7f0000000000)=[{'CD', @val={' \'', 'CD Capture'}}, {'DIGITAL2', @void}, {'IMIX', @void}, {'PCM', @val={' \'', 'CD Capture Switch'}}, {'LINE1', @void}, {'IGAIN', @void}], 0x6c) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14001300", @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) (async) process_vm_readv(0x0, &(0x7f0000000300)=[{&(0x7f0000000080)=""/219, 0xdb}, {&(0x7f0000000180)=""/144, 0x90}, {&(0x7f0000000240)=""/169, 0xa9}], 0x3, &(0x7f0000000340)=[{&(0x7f0000000400)=""/228, 0xe4}], 0x1, 0x0) (async) 12:34:15 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$net_dm(&(0x7f00000000c0), 0xffffffffffffffff) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000140)=ANY=[@ANYBLOB="8623f9bb9addf6b4fd63881ce5b0f0fb3ba30c50784e558f4abf480750b182adedf373947520c928b313b9ed000903bafebe90cbef0e6e1b293d7359903f71ee69ee22cfeffeec18c529c0a66f37e4c161698d2cd8cfa03d56dcb3f7f11f2567a619d595665a7fb2a787bfd70fbc90893f05031d4db58c2bd85d42a968165c392e92c5c08fb1fa62533b6de2b0f9fe8415da2c8aa8b0b8b5d472eb44a1b022c440930592154cb678bff7f243f0c6758ae5361bfadb25a04ee9572294fb87f9472dc62942b0cfb400fafe44b819595da5f7ca6379fc835b441ad9c68b3799ff52c5b092c7a588d7a3db31", @ANYRES16=r3, @ANYBLOB="010000000000000000000300000008000100000000000d000a002f6465762f64737000000000"], 0x2c}, 0x1, 0x0, 0x0, 0x44}, 0x0) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x2c, r3, 0x400, 0x70bd28, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0x0, 0x2, 0xfff}]}, 0x7}, 0x1, 0x0, 0x0, 0x400c884}, 0x40091) (async) getpriority(0x0, 0x0) 12:34:15 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="05a083d8874d1c5f4d6981000000b5", @ANYRES16=r3, @ANYBLOB="010000000000000000000300000008000100000000000d000a002f6465762f64737000000000"], 0x2c}}, 0x0) (async) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000040)={0x28, r3, 0x1, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r4}]}]}, 0x28}, 0x1, 0x0, 0x0, 0x80}, 0x0) 12:34:15 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000000600"/26], 0x20}}, 0x90) [ 1059.704104] nbd: must specify a device to reconfigure 12:34:15 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) [ 1059.772054] nbd: must specify at least one socket 12:34:15 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) getpriority(0x0, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100000000000005000300000000"], 0x14}}, 0x0) 12:34:15 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$net_dm(&(0x7f00000000c0), 0xffffffffffffffff) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000140)=ANY=[@ANYBLOB="8623f9bb9addf6b4fd63881ce5b0f0fb3ba30c50784e558f4abf480750b182adedf373947520c928b313b9ed000903bafebe90cbef0e6e1b293d7359903f71ee69ee22cfeffeec18c529c0a66f37e4c161698d2cd8cfa03d56dcb3f7f11f2567a619d595665a7fb2a787bfd70fbc90893f05031d4db58c2bd85d42a968165c392e92c5c08fb1fa62533b6de2b0f9fe8415da2c8aa8b0b8b5d472eb44a1b022c440930592154cb678bff7f243f0c6758ae5361bfadb25a04ee9572294fb87f9472dc62942b0cfb400fafe44b819595da5f7ca6379fc835b441ad9c68b3799ff52c5b092c7a588d7a3db31", @ANYRES16=r3, @ANYBLOB="010000000000000000000300000008000100000000000d000a002f6465762f64737000000000"], 0x2c}, 0x1, 0x0, 0x0, 0x44}, 0x0) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x2c, r3, 0x400, 0x70bd28, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0x0, 0x2, 0xfff}]}, 0x7}, 0x1, 0x0, 0x0, 0x400c884}, 0x40091) getpriority(0x0, 0x0) [ 1059.806031] nbd: must specify a device to reconfigure 12:34:15 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:15 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000400)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x402}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x38, r1, 0x1, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x21}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffffa}]}, 0x38}, 0x1, 0x0, 0x0, 0x20000004}, 0x20040010) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) 12:34:15 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="05a083d8874d1c5f4d6981000000b5", @ANYRES16=r3, @ANYBLOB="010000000000000000000300000008000100000000000d000a002f6465762f64737000000000"], 0x2c}}, 0x0) (async) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000040)={0x28, r3, 0x1, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r4}]}]}, 0x28}, 0x1, 0x0, 0x0, 0x80}, 0x0) 12:34:15 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000000600"/26], 0x20}}, 0x90) [ 1059.844465] nbd: must specify a device to reconfigure 12:34:15 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) getpriority(0x0, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100000000000005000300000000"], 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) getpriority(0x0, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100000000000005000300000000"], 0x14}}, 0x0) (async) 12:34:15 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) [ 1059.943634] nbd: must specify a device to reconfigure 12:34:15 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x50, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x401}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8000000000000001}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}]}, 0x50}}, 0x4800) 12:34:15 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000002c0)={0xffffffffffffffff}) r4 = syz_open_dev$audion(&(0x7f0000000300), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000500)={0xffffffffffffffff, 0xffffffffffffffff}) r7 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r7, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000680)={&(0x7f0000000700)=ANY=[@ANYBLOB='X\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="00022db57000fbdbdf25020000000c000200fa9d0000000000002c00078008000100", @ANYRES32=r3, @ANYRES64=r7, @ANYRES32=r4, @ANYRES16, @ANYRES32=r5, @ANYBLOB="08000100", @ANYRES32, @ANYRES16, @ANYRES32, @ANYBLOB="0c0007800800442be36cb860e4890100", @ANYRESHEX, @ANYBLOB], 0x58}}, 0x4004095) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r10 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r9) sendmsg$NBD_CMD_RECONFIGURE(r10, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000780)=ANY=[@ANYBLOB="e21c38d02ffed9d28a613a4d4bdd97344072bfba1931b43ee954749d1364d22269ece3069544224e06f85d2e2056842011eda7b8b0ef78542c3d6783b4ace0ca4bc90e5349cbe7b94ddfbc04ad0bba3fbdedd99b0cb0874065e37c04703bb4837e4f097c5ed5c0c79dbee9cad8ae9814f6a5135ab9db8bdd22a74092d037c542ac11990f65472d87fcbbf947fe424c166b99286dd400", @ANYRES16=r11, @ANYBLOB="0000000000000000000003000000"], 0x14}, 0x1, 0x0, 0x0, 0x10}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r8) r12 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_STOP(r8, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r12, 0x0, 0x70bd29, 0x25dfdbfb, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x40044}, 0x810) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000380)=ANY=[@ANYBLOB="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", @ANYRES16=r2, @ANYBLOB="010000a8e47c8f4b0e29f55446000003000000d4c3eff580ad6efb9231a1c37e07d37a63e3070d86f11aef6603ed1897eedb6ade2d9fe4d056964cca1b4e8fc68c39af09cce9d4cba11761"], 0x14}}, 0x0) 12:34:15 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r0) sendmsg$NET_DM_CMD_START(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) [ 1059.975654] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 1060.007419] nbd: must specify a device to reconfigure 12:34:15 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000000600"/26], 0x20}}, 0x90) 12:34:15 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) 12:34:15 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) getpriority(0x0, 0x0) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100000000000005000300000000"], 0x14}}, 0x0) [ 1060.030400] nbd: must specify a device to reconfigure [ 1060.047673] nbd: must specify a device to reconfigure 12:34:15 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x50, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x401}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8000000000000001}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}]}, 0x50}}, 0x4800) 12:34:15 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000002c0)={0xffffffffffffffff}) r4 = syz_open_dev$audion(&(0x7f0000000300), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000500)={0xffffffffffffffff, 0xffffffffffffffff}) r7 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r7, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000680)={&(0x7f0000000700)=ANY=[@ANYBLOB='X\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="00022db57000fbdbdf25020000000c000200fa9d0000000000002c00078008000100", @ANYRES32=r3, @ANYRES64=r7, @ANYRES32=r4, @ANYRES16, @ANYRES32=r5, @ANYBLOB="08000100", @ANYRES32, @ANYRES16, @ANYRES32, @ANYBLOB="0c0007800800442be36cb860e4890100", @ANYRESHEX, @ANYBLOB], 0x58}}, 0x4004095) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r10 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r9) sendmsg$NBD_CMD_RECONFIGURE(r10, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000780)=ANY=[@ANYBLOB="e21c38d02ffed9d28a613a4d4bdd97344072bfba1931b43ee954749d1364d22269ece3069544224e06f85d2e2056842011eda7b8b0ef78542c3d6783b4ace0ca4bc90e5349cbe7b94ddfbc04ad0bba3fbdedd99b0cb0874065e37c04703bb4837e4f097c5ed5c0c79dbee9cad8ae9814f6a5135ab9db8bdd22a74092d037c542ac11990f65472d87fcbbf947fe424c166b99286dd400", @ANYRES16=r11, @ANYBLOB="0000000000000000000003000000"], 0x14}, 0x1, 0x0, 0x0, 0x10}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r8) r12 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_STOP(r8, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r12, 0x0, 0x70bd29, 0x25dfdbfb, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x40044}, 0x810) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000380)=ANY=[@ANYBLOB="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", @ANYRES16=r2, @ANYBLOB="010000a8e47c8f4b0e29f55446000003000000d4c3eff580ad6efb9231a1c37e07d37a63e3070d86f11aef6603ed1897eedb6ade2d9fe4d056964cca1b4e8fc68c39af09cce9d4cba11761"], 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000002c0)) (async) syz_open_dev$audion(&(0x7f0000000300), 0x0, 0x2) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000500)) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r7, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000680)={&(0x7f0000000700)=ANY=[@ANYBLOB='X\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="00022db57000fbdbdf25020000000c000200fa9d0000000000002c00078008000100", @ANYRES32=r3, @ANYRES64=r7, @ANYRES32=r4, @ANYRES16, @ANYRES32=r5, @ANYBLOB="08000100", @ANYRES32, @ANYRES16, @ANYRES32, @ANYBLOB="0c0007800800442be36cb860e4890100", @ANYRESHEX, @ANYBLOB], 0x58}}, 0x4004095) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r9) (async) sendmsg$NBD_CMD_RECONFIGURE(r10, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000780)=ANY=[@ANYBLOB="e21c38d02ffed9d28a613a4d4bdd97344072bfba1931b43ee954749d1364d22269ece3069544224e06f85d2e2056842011eda7b8b0ef78542c3d6783b4ace0ca4bc90e5349cbe7b94ddfbc04ad0bba3fbdedd99b0cb0874065e37c04703bb4837e4f097c5ed5c0c79dbee9cad8ae9814f6a5135ab9db8bdd22a74092d037c542ac11990f65472d87fcbbf947fe424c166b99286dd400", @ANYRES16=r11, @ANYBLOB="0000000000000000000003000000"], 0x14}, 0x1, 0x0, 0x0, 0x10}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r8) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NET_DM_CMD_STOP(r8, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r12, 0x0, 0x70bd29, 0x25dfdbfb, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x40044}, 0x810) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000380)=ANY=[@ANYBLOB="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", @ANYRES16=r2, @ANYBLOB="010000a8e47c8f4b0e29f55446000003000000d4c3eff580ad6efb9231a1c37e07d37a63e3070d86f11aef6603ed1897eedb6ade2d9fe4d056964cca1b4e8fc68c39af09cce9d4cba11761"], 0x14}}, 0x0) (async) 12:34:15 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4}, 0x90) 12:34:15 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r0) sendmsg$NET_DM_CMD_START(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) [ 1060.161557] nbd: must specify a device to reconfigure 12:34:15 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000000c0)=ANY=[@ANYBLOB="2c70a7b3", @ANYRESHEX=r2, @ANYBLOB="0100000000000000000003000000a484802b352135cf8b1bc318d1c3045dd0761d4ccdd1033acf1d62ee546ebb38195b0d8d29c607f78d0026fc0508108e105c43928cd1b13938386ac25e40b234ce3751d7f5c17921cba85c7d79dc9b43fc4cceb89ae83e1c1588e5bcb43b515b54ff770145df048efe93eef9f655e26e5c611b864f5f1a5ad899e0244dcff691e4ba0a5c1f98712fd261a978e9cb4a49924451c537c56732891b847fac146eacea287a05fffeb99a488b"], 0x14}}, 0x0) 12:34:15 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x50, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x401}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8000000000000001}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}]}, 0x50}}, 0x4800) 12:34:15 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) 12:34:15 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r0) sendmsg$NET_DM_CMD_START(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) [ 1060.186725] nbd: must specify a device to reconfigure [ 1060.205048] block nbd1: not configured, cannot reconfigure 12:34:15 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4}, 0x90) 12:34:15 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000002c0)={0xffffffffffffffff}) (async) r4 = syz_open_dev$audion(&(0x7f0000000300), 0x0, 0x2) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000500)={0xffffffffffffffff, 0xffffffffffffffff}) (async) r7 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r7, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000680)={&(0x7f0000000700)=ANY=[@ANYBLOB='X\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="00022db57000fbdbdf25020000000c000200fa9d0000000000002c00078008000100", @ANYRES32=r3, @ANYRES64=r7, @ANYRES32=r4, @ANYRES16, @ANYRES32=r5, @ANYBLOB="08000100", @ANYRES32, @ANYRES16, @ANYRES32, @ANYBLOB="0c0007800800442be36cb860e4890100", @ANYRESHEX, @ANYBLOB], 0x58}}, 0x4004095) (async) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r10 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r9) sendmsg$NBD_CMD_RECONFIGURE(r10, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000780)=ANY=[@ANYBLOB="e21c38d02ffed9d28a613a4d4bdd97344072bfba1931b43ee954749d1364d22269ece3069544224e06f85d2e2056842011eda7b8b0ef78542c3d6783b4ace0ca4bc90e5349cbe7b94ddfbc04ad0bba3fbdedd99b0cb0874065e37c04703bb4837e4f097c5ed5c0c79dbee9cad8ae9814f6a5135ab9db8bdd22a74092d037c542ac11990f65472d87fcbbf947fe424c166b99286dd400", @ANYRES16=r11, @ANYBLOB="0000000000000000000003000000"], 0x14}, 0x1, 0x0, 0x0, 0x10}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r8) (async) r12 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NET_DM_CMD_STOP(r8, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r12, 0x0, 0x70bd29, 0x25dfdbfb, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x40044}, 0x810) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000380)=ANY=[@ANYBLOB="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", @ANYRES16=r2, @ANYBLOB="010000a8e47c8f4b0e29f55446000003000000d4c3eff580ad6efb9231a1c37e07d37a63e3070d86f11aef6603ed1897eedb6ade2d9fe4d056964cca1b4e8fc68c39af09cce9d4cba11761"], 0x14}}, 0x0) 12:34:15 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) [ 1060.275026] nbd: must specify a device to reconfigure 12:34:15 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000000c0)=ANY=[@ANYBLOB="2c70a7b3", @ANYRESHEX=r2, @ANYBLOB="0100000000000000000003000000a484802b352135cf8b1bc318d1c3045dd0761d4ccdd1033acf1d62ee546ebb38195b0d8d29c607f78d0026fc0508108e105c43928cd1b13938386ac25e40b234ce3751d7f5c17921cba85c7d79dc9b43fc4cceb89ae83e1c1588e5bcb43b515b54ff770145df048efe93eef9f655e26e5c611b864f5f1a5ad899e0244dcff691e4ba0a5c1f98712fd261a978e9cb4a49924451c537c56732891b847fac146eacea287a05fffeb99a488b"], 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000000c0)=ANY=[@ANYBLOB="2c70a7b3", @ANYRESHEX=r2, @ANYBLOB="0100000000000000000003000000a484802b352135cf8b1bc318d1c3045dd0761d4ccdd1033acf1d62ee546ebb38195b0d8d29c607f78d0026fc0508108e105c43928cd1b13938386ac25e40b234ce3751d7f5c17921cba85c7d79dc9b43fc4cceb89ae83e1c1588e5bcb43b515b54ff770145df048efe93eef9f655e26e5c611b864f5f1a5ad899e0244dcff691e4ba0a5c1f98712fd261a978e9cb4a49924451c537c56732891b847fac146eacea287a05fffeb99a488b"], 0x14}}, 0x0) (async) 12:34:15 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(0x0, r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) [ 1060.319958] nbd: must specify a device to reconfigure 12:34:15 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100000068bd27a7c89e61a1322d"], 0x14}}, 0x0) 12:34:15 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4}, 0x90) 12:34:15 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100000000000000000500000000dfb3dc8c48cdc79a20e51384245ebce7467a3c8d09a8eb3bebe37398e694af00d0edd174f6095d77a46463e03c67b09d60354a1d553dd9f07335d01b8eb53c0e9424d7bb8eb16c152608e8afe68418cd96d1aa38295b"], 0x14}}, 0x0) [ 1060.343183] block nbd1: not configured, cannot reconfigure 12:34:15 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(0x0, r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:15 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000000c0)=ANY=[@ANYBLOB="2c70a7b3", @ANYRESHEX=r2, @ANYBLOB="0100000000000000000003000000a484802b352135cf8b1bc318d1c3045dd0761d4ccdd1033acf1d62ee546ebb38195b0d8d29c607f78d0026fc0508108e105c43928cd1b13938386ac25e40b234ce3751d7f5c17921cba85c7d79dc9b43fc4cceb89ae83e1c1588e5bcb43b515b54ff770145df048efe93eef9f655e26e5c611b864f5f1a5ad899e0244dcff691e4ba0a5c1f98712fd261a978e9cb4a49924451c537c56732891b847fac146eacea287a05fffeb99a488b"], 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000000c0)=ANY=[@ANYBLOB="2c70a7b3", @ANYRESHEX=r2, @ANYBLOB="0100000000000000000003000000a484802b352135cf8b1bc318d1c3045dd0761d4ccdd1033acf1d62ee546ebb38195b0d8d29c607f78d0026fc0508108e105c43928cd1b13938386ac25e40b234ce3751d7f5c17921cba85c7d79dc9b43fc4cceb89ae83e1c1588e5bcb43b515b54ff770145df048efe93eef9f655e26e5c611b864f5f1a5ad899e0244dcff691e4ba0a5c1f98712fd261a978e9cb4a49924451c537c56732891b847fac146eacea287a05fffeb99a488b"], 0x14}}, 0x0) (async) [ 1060.416139] nbd: must specify a device to reconfigure 12:34:15 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) 12:34:15 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100000068bd27a7c89e61a1322d"], 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100000068bd27a7c89e61a1322d"], 0x14}}, 0x0) (async) 12:34:15 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:15 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100000000000000000500000000dfb3dc8c48cdc79a20e51384245ebce7467a3c8d09a8eb3bebe37398e694af00d0edd174f6095d77a46463e03c67b09d60354a1d553dd9f07335d01b8eb53c0e9424d7bb8eb16c152608e8afe68418cd96d1aa38295b"], 0x14}}, 0x0) [ 1060.442031] block nbd1: not configured, cannot reconfigure 12:34:15 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(0x0, r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:15 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x18, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) [ 1060.545909] nbd: must specify a device to reconfigure 12:34:15 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100000068bd27a7c89e61a1322d"], 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100000068bd27a7c89e61a1322d"], 0x14}}, 0x0) (async) 12:34:15 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) [ 1060.580745] nbd: must specify a device to reconfigure 12:34:15 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100000000000000000500000000dfb3dc8c48cdc79a20e51384245ebce7467a3c8d09a8eb3bebe37398e694af00d0edd174f6095d77a46463e03c67b09d60354a1d553dd9f07335d01b8eb53c0e9424d7bb8eb16c152608e8afe68418cd96d1aa38295b"], 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100000000000000000500000000dfb3dc8c48cdc79a20e51384245ebce7467a3c8d09a8eb3bebe37398e694af00d0edd174f6095d77a46463e03c67b09d60354a1d553dd9f07335d01b8eb53c0e9424d7bb8eb16c152608e8afe68418cd96d1aa38295b"], 0x14}}, 0x0) (async) 12:34:15 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:16 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) [ 1060.608550] nbd: must specify a device to reconfigure 12:34:16 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x18, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:16 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) msgget(0x3, 0x8) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x14, r4, 0x1}, 0x14}}, 0x0) [ 1060.672461] nbd: must specify a device to reconfigure 12:34:16 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x52}}, 0x2800c090) 12:34:16 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) (async) [ 1060.698549] nbd: must specify a device to reconfigure 12:34:16 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x18, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x18, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (async) 12:34:16 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:16 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:16 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x52}}, 0x2800c090) [ 1060.781734] block nbd2: not configured, cannot reconfigure [ 1060.792761] nbd: must specify a device to reconfigure [ 1060.805599] nbd: must specify a device to reconfigure 12:34:16 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) msgget(0x3, 0x8) (async, rerun: 32) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x14, r4, 0x1}, 0x14}}, 0x0) 12:34:16 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (async) [ 1060.827460] nbd: must specify a device to reconfigure 12:34:16 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) [ 1060.853564] nbd: must specify a device to reconfigure 12:34:16 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x52}}, 0x2800c090) [ 1060.885962] nbd: must specify a device to reconfigure 12:34:16 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000002c0)=ANY=[@ANYBLOB="20000000fd4dc11b5014e7cafbe7328c88fd5a76bf016e0f1119d3170dd4290e86658a2d61dc1de48610dd5cea05df833c8eceb5c3eabf786b6e189927158f0bde07880c855694cd919601ec5d3812927695871ea776d77ab0582023e38c2f8f5958f945bf5f6c3b9ab9f3915a7074ffdb9da15336d0be04183dc7b93a81d433dbd601ed1174d1f7b34e157d8828a134d4bb69faf815026221ecb4f27d563ab87510", @ANYRES16=r2, @ANYBLOB="010000000000030000000c0008000000000000000000444635df9836f8f918cd653358ffcbf0dea8a1e5da86cb1cb93b63b99330b31e9b84ce3ce9859f1a998c3fa2e546848be51b2e087bf2bb0ab20471829a0293b76d0212610125331f8462528ae39e489409bc36860282189b5f30c86869509ed9bc546c87150d79091fb40b98b2e9b8d27431aaf729c387836a37a4103141c408975768bad209474252fc76f0b51935d039323b318f84686fd5eda5ed2a9145d8634664da590693227e4c540402de2ea8e26981fe8686f09dff563034613ef0085fbec4e78d130bbfa2c0c6aefcd8d12d84380cf312813c01"], 0x20}}, 0x90) write$vhost_msg(0xffffffffffffffff, &(0x7f0000000140)={0x1, {&(0x7f0000000000)=""/20, 0x14, &(0x7f0000000040)=""/246, 0x1, 0x2}}, 0x48) 12:34:16 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_open_dev$audion(&(0x7f0000000040), 0x1a, 0x41c000) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0xe4459091bcbba3b0}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x100, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x304}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x60}, 0x1, 0x0, 0x0, 0x80}, 0x94) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000180)=ANY=[@ANYBLOB="ed7900a9c022684cee59c2000000000000000040", @ANYRES16=r4, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) 12:34:16 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r0) sendmsg$NET_DM_CMD_START(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) [ 1060.914245] nbd: must specify a device to reconfigure [ 1060.931500] nbd: must specify a device to reconfigure [ 1060.956288] nbd: must specify a device to reconfigure 12:34:16 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x52}}, 0x2800c090) 12:34:16 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (async) 12:34:16 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) msgget(0x3, 0x8) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x14, r4, 0x1}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) msgget(0x3, 0x8) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x14, r4, 0x1}, 0x14}}, 0x0) (async) [ 1060.987512] nbd: must specify a device to reconfigure [ 1061.002499] nbd: must specify a device to reconfigure 12:34:16 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r0) sendmsg$NET_DM_CMD_START(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:16 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_open_dev$audion(&(0x7f0000000040), 0x1a, 0x41c000) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0xe4459091bcbba3b0}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x100, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x304}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x60}, 0x1, 0x0, 0x0, 0x80}, 0x94) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000180)=ANY=[@ANYBLOB="ed7900a9c022684cee59c2000000000000000040", @ANYRES16=r4, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_open_dev$audion(&(0x7f0000000040), 0x1a, 0x41c000) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0xe4459091bcbba3b0}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x100, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x304}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x60}, 0x1, 0x0, 0x0, 0x80}, 0x94) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000180)=ANY=[@ANYBLOB="ed7900a9c022684cee59c2000000000000000040", @ANYRES16=r4, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) (async) 12:34:16 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000002c0)=ANY=[@ANYBLOB="20000000fd4dc11b5014e7cafbe7328c88fd5a76bf016e0f1119d3170dd4290e86658a2d61dc1de48610dd5cea05df833c8eceb5c3eabf786b6e189927158f0bde07880c855694cd919601ec5d3812927695871ea776d77ab0582023e38c2f8f5958f945bf5f6c3b9ab9f3915a7074ffdb9da15336d0be04183dc7b93a81d433dbd601ed1174d1f7b34e157d8828a134d4bb69faf815026221ecb4f27d563ab87510", @ANYRES16=r2, @ANYBLOB="010000000000030000000c0008000000000000000000444635df9836f8f918cd653358ffcbf0dea8a1e5da86cb1cb93b63b99330b31e9b84ce3ce9859f1a998c3fa2e546848be51b2e087bf2bb0ab20471829a0293b76d0212610125331f8462528ae39e489409bc36860282189b5f30c86869509ed9bc546c87150d79091fb40b98b2e9b8d27431aaf729c387836a37a4103141c408975768bad209474252fc76f0b51935d039323b318f84686fd5eda5ed2a9145d8634664da590693227e4c540402de2ea8e26981fe8686f09dff563034613ef0085fbec4e78d130bbfa2c0c6aefcd8d12d84380cf312813c01"], 0x20}}, 0x90) (async) write$vhost_msg(0xffffffffffffffff, &(0x7f0000000140)={0x1, {&(0x7f0000000000)=""/20, 0x14, &(0x7f0000000040)=""/246, 0x1, 0x2}}, 0x48) [ 1061.068064] nbd: must specify a device to reconfigure 12:34:16 executing program 4: sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x52}}, 0x2800c090) [ 1061.103047] nbd: must specify a device to reconfigure 12:34:16 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r0) sendmsg$NET_DM_CMD_START(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:16 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000000c0)={0x4c, r1, 0x200, 0x0, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x100000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}]}, 0x4c}, 0x1, 0x0, 0x0, 0x84}, 0x0) [ 1061.134986] block nbd2: not configured, cannot reconfigure 12:34:16 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000002c0)=ANY=[@ANYBLOB="20000000fd4dc11b5014e7cafbe7328c88fd5a76bf016e0f1119d3170dd4290e86658a2d61dc1de48610dd5cea05df833c8eceb5c3eabf786b6e189927158f0bde07880c855694cd919601ec5d3812927695871ea776d77ab0582023e38c2f8f5958f945bf5f6c3b9ab9f3915a7074ffdb9da15336d0be04183dc7b93a81d433dbd601ed1174d1f7b34e157d8828a134d4bb69faf815026221ecb4f27d563ab87510", @ANYRES16=r2, @ANYBLOB="010000000000030000000c0008000000000000000000444635df9836f8f918cd653358ffcbf0dea8a1e5da86cb1cb93b63b99330b31e9b84ce3ce9859f1a998c3fa2e546848be51b2e087bf2bb0ab20471829a0293b76d0212610125331f8462528ae39e489409bc36860282189b5f30c86869509ed9bc546c87150d79091fb40b98b2e9b8d27431aaf729c387836a37a4103141c408975768bad209474252fc76f0b51935d039323b318f84686fd5eda5ed2a9145d8634664da590693227e4c540402de2ea8e26981fe8686f09dff563034613ef0085fbec4e78d130bbfa2c0c6aefcd8d12d84380cf312813c01"], 0x20}}, 0x90) (async) write$vhost_msg(0xffffffffffffffff, &(0x7f0000000140)={0x1, {&(0x7f0000000000)=""/20, 0x14, &(0x7f0000000040)=""/246, 0x1, 0x2}}, 0x48) 12:34:16 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_open_dev$audion(&(0x7f0000000040), 0x1a, 0x41c000) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0xe4459091bcbba3b0}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x100, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x304}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x60}, 0x1, 0x0, 0x0, 0x80}, 0x94) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000180)=ANY=[@ANYBLOB="ed7900a9c022684cee59c2000000000000000040", @ANYRES16=r4, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) [ 1061.176264] nbd: must specify a device to reconfigure 12:34:16 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, 0x0, 0x0) 12:34:16 executing program 4: sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x52}}, 0x2800c090) 12:34:16 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x3c, 0x0, 0x0, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5698}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfd71}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8001}, 0x4010) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r1, 0x300, 0x0, 0x25dfdbfc}, 0x14}}, 0x0) 12:34:16 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000000c0)={0x4c, r1, 0x200, 0x0, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x100000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}]}, 0x4c}, 0x1, 0x0, 0x0, 0x84}, 0x0) 12:34:16 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="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"], 0x14}}, 0x0) 12:34:16 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, 0x0, 0x100, 0x70bd25, 0x25dfdbff, {}, ["", "", ""]}, 0x14}}, 0x48080) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r3, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x30, r4, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp}, @L2TP_ATTR_COOKIE={0xc}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x30}}, 0x0) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r2, &(0x7f0000000200)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x24, r4, 0x400, 0x70bd26, 0x25dfdbfd, {}, [@L2TP_ATTR_SEND_SEQ={0x5, 0x13, 0x1}, @L2TP_ATTR_LNS_MODE={0x5, 0x14, 0xd5}]}, 0x24}, 0x1, 0x0, 0x0, 0x10}, 0x20000001) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r0) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:16 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, 0x0, 0x0) 12:34:16 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async, rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="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"], 0x14}}, 0x0) (rerun: 64) 12:34:16 executing program 4: sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x52}}, 0x2800c090) 12:34:16 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x3c, 0x0, 0x0, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5698}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfd71}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8001}, 0x4010) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r1, 0x300, 0x0, 0x25dfdbfc}, 0x14}}, 0x0) 12:34:16 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000000c0)={0x4c, r1, 0x200, 0x0, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x100000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}]}, 0x4c}, 0x1, 0x0, 0x0, 0x84}, 0x0) 12:34:16 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, 0x0, 0x0) [ 1061.414094] nbd: must specify a device to reconfigure 12:34:16 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:16 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, 0x0, 0x100, 0x70bd25, 0x25dfdbff, {}, ["", "", ""]}, 0x14}}, 0x48080) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r3, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x30, r4, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp}, @L2TP_ATTR_COOKIE={0xc}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x30}}, 0x0) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r2, &(0x7f0000000200)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x24, r4, 0x400, 0x70bd26, 0x25dfdbfd, {}, [@L2TP_ATTR_SEND_SEQ={0x5, 0x13, 0x1}, @L2TP_ATTR_LNS_MODE={0x5, 0x14, 0xd5}]}, 0x24}, 0x1, 0x0, 0x0, 0x10}, 0x20000001) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r0) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, 0x0, 0x100, 0x70bd25, 0x25dfdbff, {}, ["", "", ""]}, 0x14}}, 0x48080) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) (async) sendmsg$L2TP_CMD_SESSION_GET(r3, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x30, r4, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp}, @L2TP_ATTR_COOKIE={0xc}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x30}}, 0x0) (async) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r2, &(0x7f0000000200)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x24, r4, 0x400, 0x70bd26, 0x25dfdbfd, {}, [@L2TP_ATTR_SEND_SEQ={0x5, 0x13, 0x1}, @L2TP_ATTR_LNS_MODE={0x5, 0x14, 0xd5}]}, 0x24}, 0x1, 0x0, 0x0, 0x10}, 0x20000001) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) (async) 12:34:16 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x52}}, 0x2800c090) 12:34:16 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x3c, 0x0, 0x0, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5698}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfd71}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8001}, 0x4010) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r1, 0x300, 0x0, 0x25dfdbfc}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x3c, 0x0, 0x0, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5698}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfd71}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8001}, 0x4010) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r1, 0x300, 0x0, 0x25dfdbfc}, 0x14}}, 0x0) (async) 12:34:16 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:16 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="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"], 0x14}}, 0x0) [ 1061.541699] nbd: must specify a device to reconfigure 12:34:16 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) [ 1061.570861] nbd: must specify a device to reconfigure 12:34:16 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:17 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, 0x0, 0x100, 0x70bd25, 0x25dfdbff, {}, ["", "", ""]}, 0x14}}, 0x48080) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r3, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x30, r4, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp}, @L2TP_ATTR_COOKIE={0xc}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x30}}, 0x0) (async) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r2, &(0x7f0000000200)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x24, r4, 0x400, 0x70bd26, 0x25dfdbfd, {}, [@L2TP_ATTR_SEND_SEQ={0x5, 0x13, 0x1}, @L2TP_ATTR_LNS_MODE={0x5, 0x14, 0xd5}]}, 0x24}, 0x1, 0x0, 0x0, 0x10}, 0x20000001) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r0) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:17 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async, rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:17 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x52}}, 0x2800c090) 12:34:17 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NET_DM_CMD_START(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x200, 0x70bd2c, 0x25dfdbff, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40000}, 0x40) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) pipe2$watch_queue(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000280)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x9c, r2, 0x4, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8}]}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x290}]}, 0x9c}, 0x1, 0x0, 0x0, 0x40005}, 0x0) 12:34:17 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:17 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = bpf$ITER_CREATE(0x21, &(0x7f0000000100), 0x8) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000001c0)={0xffffffffffffffff}) r8 = syz_open_dev$audion(&(0x7f0000000200), 0x9, 0x210000) r9 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r9, 0x0, 0x0) r10 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r10, 0x0, 0x0) r11 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r11, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000380)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000400)={0xe4, 0x0, 0x800, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x33ca}, @NBD_ATTR_SOCKETS={0xfff8, 0x7, 0x0, 0x1, [{0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8, 0x1, r11}]}]}, 0xe4}, 0x1, 0x0, 0x0, 0x20004801}, 0x40005) r12 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r12, 0x1}, 0x14}}, 0x0) [ 1061.732844] nbd: must specify a device to reconfigure 12:34:17 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x4c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7fffffff}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}]}, 0x4c}, 0x1, 0x0, 0x0, 0x480}, 0x4040800) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:17 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r0) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x20, 0x70bd28, 0x25dfdbfc, {}, ["", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x14}, 0x0) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) 12:34:17 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:17 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x52}}, 0x2800c090) [ 1061.758594] nbd: must specify a device to reconfigure [ 1061.829063] nbd: must specify a device to reconfigure 12:34:17 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (async) sendmsg$NET_DM_CMD_START(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x200, 0x70bd2c, 0x25dfdbff, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40000}, 0x40) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async) pipe2$watch_queue(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) (async) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000280)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x9c, r2, 0x4, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8}]}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x290}]}, 0x9c}, 0x1, 0x0, 0x0, 0x40005}, 0x0) 12:34:17 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, 0x0, 0x2800c090) 12:34:17 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = bpf$ITER_CREATE(0x21, &(0x7f0000000100), 0x8) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff}) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) (async) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) (async) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000001c0)={0xffffffffffffffff}) (async) r8 = syz_open_dev$audion(&(0x7f0000000200), 0x9, 0x210000) (async, rerun: 32) r9 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (rerun: 32) sendmsg$L2TP_CMD_SESSION_CREATE(r9, 0x0, 0x0) (async) r10 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r10, 0x0, 0x0) (async) r11 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r11, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000380)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000400)={0xe4, 0x0, 0x800, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x33ca}, @NBD_ATTR_SOCKETS={0xfff8, 0x7, 0x0, 0x1, [{0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8, 0x1, r11}]}]}, 0xe4}, 0x1, 0x0, 0x0, 0x20004801}, 0x40005) (async, rerun: 64) r12 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r12, 0x1}, 0x14}}, 0x0) 12:34:17 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r0) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x20, 0x70bd28, 0x25dfdbfc, {}, ["", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x14}, 0x0) (async, rerun: 32) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async, rerun: 32) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) 12:34:17 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x40042}, 0x0) [ 1061.864675] nbd: must specify a device to reconfigure [ 1061.874262] nbd: must specify a device to reconfigure [ 1061.899257] block nbd1: not configured, cannot reconfigure [ 1061.953809] nbd: must specify a device to reconfigure 12:34:17 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x4c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7fffffff}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}]}, 0x4c}, 0x1, 0x0, 0x0, 0x480}, 0x4040800) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) [ 1061.998459] nbd: must specify a device to reconfigure 12:34:17 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:17 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r0) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x20, 0x70bd28, 0x25dfdbfc, {}, ["", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x14}, 0x0) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) 12:34:17 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, 0x0, 0x2800c090) [ 1062.018876] nbd: must specify a device to reconfigure 12:34:17 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (async) sendmsg$NET_DM_CMD_START(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x200, 0x70bd2c, 0x25dfdbff, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40000}, 0x40) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async) pipe2$watch_queue(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) (async) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000280)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x9c, r2, 0x4, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8}]}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x290}]}, 0x9c}, 0x1, 0x0, 0x0, 0x40005}, 0x0) 12:34:17 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r2 = bpf$ITER_CREATE(0x21, &(0x7f0000000100), 0x8) (async, rerun: 32) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) (async, rerun: 64) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (rerun: 64) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000001c0)={0xffffffffffffffff}) r8 = syz_open_dev$audion(&(0x7f0000000200), 0x9, 0x210000) r9 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r9, 0x0, 0x0) (async) r10 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r10, 0x0, 0x0) r11 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r11, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000380)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000400)={0xe4, 0x0, 0x800, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x33ca}, @NBD_ATTR_SOCKETS={0xfff8, 0x7, 0x0, 0x1, [{0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8, 0x1, r11}]}]}, 0xe4}, 0x1, 0x0, 0x0, 0x20004801}, 0x40005) r12 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r12, 0x1}, 0x14}}, 0x0) [ 1062.068279] nbd: must specify a device to reconfigure 12:34:17 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:17 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x4c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7fffffff}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}]}, 0x4c}, 0x1, 0x0, 0x0, 0x480}, 0x4040800) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:17 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, 0x0, 0x2800c090) [ 1062.100151] block nbd1: not configured, cannot reconfigure [ 1062.125708] nbd: must specify a device to reconfigure [ 1062.133453] nbd: must specify a device to reconfigure 12:34:17 executing program 5: r0 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) r1 = openat$cgroup_procs(r0, &(0x7f0000000200)='tasks\x00', 0x2, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) bpf$BPF_GET_BTF_INFO(0xf, &(0x7f0000000100)={0xffffffffffffffff, 0x20, &(0x7f0000000000)={&(0x7f0000000080)=""/116, 0x74, 0x0, &(0x7f0000000180)=""/89, 0x59}}, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), 0xffffffffffffffff) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000400)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000380)={&(0x7f00000002c0)={0x20, r6, 0x2, 0x70bd2b, 0x8, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x26}]}, 0x20}, 0x1, 0x0, 0x0, 0x11}, 0x400c0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000440)=ANY=[@ANYRES64=r6, @ANYRESDEC=r1, @ANYBLOB="0000000000000000000003000000"], 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) socket$l2tp(0x2, 0x2, 0x73) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB='#', @ANYRES16=r7, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) [ 1062.163660] nbd: must specify a device to reconfigure 12:34:17 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, 0x0, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:17 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x38, r2, 0xa00, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_BACKEND_IDENTIFIER={0xb, 0xa, '[}[![(\''}]}, 0x38}, 0x1, 0x0, 0x0, 0x45}, 0x24040000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) 12:34:17 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, 0x0}, 0x2800c090) 12:34:17 executing program 2: read$FUSE(0xffffffffffffffff, &(0x7f0000000680)={0x2020, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x2020) ptrace$peeksig(0x4209, r0, &(0x7f0000000000)={0x1, 0x1, 0x1}, &(0x7f0000000040)=[{}]) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x70, r3, 0x4, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x70}, 0x1, 0x0, 0x0, 0x48800}, 0x10000040) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r6, 0x1}, 0x14}}, 0x0) 12:34:17 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r2 = syz_open_dev$sndctrl(&(0x7f0000000000), 0x8, 0x200000) ioctl$SNDRV_CTL_IOCTL_PVERSION(r2, 0x80045500, &(0x7f0000000080)) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000380)=ANY=[@ANYBLOB="b4f8c0cc244fc76da6b6d9e4feb991e2a0cec2633ba74e51a5c7155ca06da6bcd2affdf1d43c737c0e46e63b65c15541c713d0d72e4c22a723a1ebcdd9476dd89b452fc0a8ee59dbb1a852eafede62c6819275a4aa636e17a0f060ca9084dc3cf50c31a4e0875960882f13505176277fddd920ad1a3b24fb3f44b19457011fd68b81dbe2e9541e8bc433422f4cf04f6e388f1473d52ee447fad4aa7360ccab94109d7a26ac6fa81778fc9b8a871ee694e5bb3064af6253f5bf12eb926003079ced754597c7f938515060aeefdbe8a3dcc7f36a7d712cc740a4a95b67eeabe80fb190a96bb9fc1f853c78145ce5bc", @ANYRES64=r4, @ANYRES32=r5], 0x20}}, 0x8051) 12:34:17 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x38, r2, 0xa00, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_BACKEND_IDENTIFIER={0xb, 0xa, '[}[![(\''}]}, 0x38}, 0x1, 0x0, 0x0, 0x45}, 0x24040000) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) 12:34:17 executing program 5: r0 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) (async) r1 = openat$cgroup_procs(r0, &(0x7f0000000200)='tasks\x00', 0x2, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) bpf$BPF_GET_BTF_INFO(0xf, &(0x7f0000000100)={0xffffffffffffffff, 0x20, &(0x7f0000000000)={&(0x7f0000000080)=""/116, 0x74, 0x0, &(0x7f0000000180)=""/89, 0x59}}, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), 0xffffffffffffffff) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000400)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000380)={&(0x7f00000002c0)={0x20, r6, 0x2, 0x70bd2b, 0x8, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x26}]}, 0x20}, 0x1, 0x0, 0x0, 0x11}, 0x400c0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000440)=ANY=[@ANYRES64=r6, @ANYRESDEC=r1, @ANYBLOB="0000000000000000000003000000"], 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) socket$l2tp(0x2, 0x2, 0x73) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB='#', @ANYRES16=r7, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) [ 1062.272323] block nbd1: not configured, cannot reconfigure [ 1062.278283] nbd: must specify a device to reconfigure [ 1062.285874] block nbd5: not configured, cannot reconfigure 12:34:17 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, 0x0, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:17 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, 0x0}, 0x2800c090) [ 1062.351528] nbd: must specify a device to reconfigure 12:34:17 executing program 2: read$FUSE(0xffffffffffffffff, &(0x7f0000000680)={0x2020, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x2020) ptrace$peeksig(0x4209, r0, &(0x7f0000000000)={0x1, 0x1, 0x1}, &(0x7f0000000040)=[{}]) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x70, r3, 0x4, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x70}, 0x1, 0x0, 0x0, 0x48800}, 0x10000040) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r6, 0x1}, 0x14}}, 0x0) read$FUSE(0xffffffffffffffff, &(0x7f0000000680)={0x2020}, 0x2020) (async) ptrace$peeksig(0x4209, r0, &(0x7f0000000000)={0x1, 0x1, 0x1}, &(0x7f0000000040)=[{}]) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) (async) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x70, r3, 0x4, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x70}, 0x1, 0x0, 0x0, 0x48800}, 0x10000040) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r6, 0x1}, 0x14}}, 0x0) (async) 12:34:17 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, 0x0, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:17 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r2 = syz_open_dev$sndctrl(&(0x7f0000000000), 0x8, 0x200000) ioctl$SNDRV_CTL_IOCTL_PVERSION(r2, 0x80045500, &(0x7f0000000080)) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000380)=ANY=[@ANYBLOB="b4f8c0cc244fc76da6b6d9e4feb991e2a0cec2633ba74e51a5c7155ca06da6bcd2affdf1d43c737c0e46e63b65c15541c713d0d72e4c22a723a1ebcdd9476dd89b452fc0a8ee59dbb1a852eafede62c6819275a4aa636e17a0f060ca9084dc3cf50c31a4e0875960882f13505176277fddd920ad1a3b24fb3f44b19457011fd68b81dbe2e9541e8bc433422f4cf04f6e388f1473d52ee447fad4aa7360ccab94109d7a26ac6fa81778fc9b8a871ee694e5bb3064af6253f5bf12eb926003079ced754597c7f938515060aeefdbe8a3dcc7f36a7d712cc740a4a95b67eeabe80fb190a96bb9fc1f853c78145ce5bc", @ANYRES64=r4, @ANYRES32=r5], 0x20}}, 0x8051) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) syz_open_dev$sndctrl(&(0x7f0000000000), 0x8, 0x200000) (async) ioctl$SNDRV_CTL_IOCTL_PVERSION(r2, 0x80045500, &(0x7f0000000080)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000380)=ANY=[@ANYBLOB="b4f8c0cc244fc76da6b6d9e4feb991e2a0cec2633ba74e51a5c7155ca06da6bcd2affdf1d43c737c0e46e63b65c15541c713d0d72e4c22a723a1ebcdd9476dd89b452fc0a8ee59dbb1a852eafede62c6819275a4aa636e17a0f060ca9084dc3cf50c31a4e0875960882f13505176277fddd920ad1a3b24fb3f44b19457011fd68b81dbe2e9541e8bc433422f4cf04f6e388f1473d52ee447fad4aa7360ccab94109d7a26ac6fa81778fc9b8a871ee694e5bb3064af6253f5bf12eb926003079ced754597c7f938515060aeefdbe8a3dcc7f36a7d712cc740a4a95b67eeabe80fb190a96bb9fc1f853c78145ce5bc", @ANYRES64=r4, @ANYRES32=r5], 0x20}}, 0x8051) (async) 12:34:17 executing program 5: r0 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) r1 = openat$cgroup_procs(r0, &(0x7f0000000200)='tasks\x00', 0x2, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) bpf$BPF_GET_BTF_INFO(0xf, &(0x7f0000000100)={0xffffffffffffffff, 0x20, &(0x7f0000000000)={&(0x7f0000000080)=""/116, 0x74, 0x0, &(0x7f0000000180)=""/89, 0x59}}, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), 0xffffffffffffffff) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000400)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000380)={&(0x7f00000002c0)={0x20, r6, 0x2, 0x70bd2b, 0x8, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x26}]}, 0x20}, 0x1, 0x0, 0x0, 0x11}, 0x400c0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000440)=ANY=[@ANYRES64=r6, @ANYRESDEC=r1, @ANYBLOB="0000000000000000000003000000"], 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) socket$l2tp(0x2, 0x2, 0x73) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB='#', @ANYRES16=r7, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) (async) openat$cgroup_procs(r0, &(0x7f0000000200)='tasks\x00', 0x2, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) bpf$BPF_GET_BTF_INFO(0xf, &(0x7f0000000100)={0xffffffffffffffff, 0x20, &(0x7f0000000000)={&(0x7f0000000080)=""/116, 0x74, 0x0, &(0x7f0000000180)=""/89, 0x59}}, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) (async) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000400)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000380)={&(0x7f00000002c0)={0x20, r6, 0x2, 0x70bd2b, 0x8, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x26}]}, 0x20}, 0x1, 0x0, 0x0, 0x11}, 0x400c0) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000440)=ANY=[@ANYRES64=r6, @ANYRESDEC=r1, @ANYBLOB="0000000000000000000003000000"], 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) (async) socket$l2tp(0x2, 0x2, 0x73) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB='#', @ANYRES16=r7, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) (async) 12:34:17 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x0, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:17 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, 0x0}, 0x2800c090) [ 1062.449852] block nbd5: not configured, cannot reconfigure 12:34:17 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x38, r2, 0xa00, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_BACKEND_IDENTIFIER={0xb, 0xa, '[}[![(\''}]}, 0x38}, 0x1, 0x0, 0x0, 0x45}, 0x24040000) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) [ 1062.549967] nbd: must specify a device to reconfigure 12:34:17 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x0, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:17 executing program 2: read$FUSE(0xffffffffffffffff, &(0x7f0000000680)={0x2020, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x2020) ptrace$peeksig(0x4209, r0, &(0x7f0000000000)={0x1, 0x1, 0x1}, &(0x7f0000000040)=[{}]) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x70, r3, 0x4, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x70}, 0x1, 0x0, 0x0, 0x48800}, 0x10000040) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r6, 0x1}, 0x14}}, 0x0) 12:34:17 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r2 = syz_open_dev$sndctrl(&(0x7f0000000000), 0x8, 0x200000) ioctl$SNDRV_CTL_IOCTL_PVERSION(r2, 0x80045500, &(0x7f0000000080)) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000380)=ANY=[@ANYBLOB="b4f8c0cc244fc76da6b6d9e4feb991e2a0cec2633ba74e51a5c7155ca06da6bcd2affdf1d43c737c0e46e63b65c15541c713d0d72e4c22a723a1ebcdd9476dd89b452fc0a8ee59dbb1a852eafede62c6819275a4aa636e17a0f060ca9084dc3cf50c31a4e0875960882f13505176277fddd920ad1a3b24fb3f44b19457011fd68b81dbe2e9541e8bc433422f4cf04f6e388f1473d52ee447fad4aa7360ccab94109d7a26ac6fa81778fc9b8a871ee694e5bb3064af6253f5bf12eb926003079ced754597c7f938515060aeefdbe8a3dcc7f36a7d712cc740a4a95b67eeabe80fb190a96bb9fc1f853c78145ce5bc", @ANYRES64=r4, @ANYRES32=r5], 0x20}}, 0x8051) 12:34:17 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={0x0}}, 0x2800c090) 12:34:18 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="0000000000000000000003000000a37e7b19b7a904988ef473fca171c46e0f6186f5206420e635"], 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000040)={0x58, r5, 0x8, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '(/-'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x58}, 0x1, 0x0, 0x0, 0x1}, 0x40040) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r7) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000000c0)=ANY=[@ANYBLOB="ff03000057d7624eee1d630e31afef889a14f9c6ba6c31ea2f7f1abd4204dae047f65570c9ea7a567f04ea2b7e9d2c9ff54943ad3e78ce568b4c8953cff52ba6db2dc6c97ef0b8955121021ea3d6d9be84253778e85debf98ff8855e9d626e70ca99b40d8ba791fc8d95341b87bb1c2beb8bda3641ae24e2e71ef107a90c2f65f05176faaa", @ANYRES16=r8, @ANYBLOB="0052abd29777b0c61458ea00000000eb000000000000838d36c66363b95278f9c69694b9a1230022003a84ecac4027a00cae5d992565cdc6c3640d3b37902ed2"], 0x14}}, 0x0) [ 1062.617914] block nbd5: not configured, cannot reconfigure 12:34:18 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x0, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:18 executing program 5: rt_sigaction(0x26, &(0x7f0000000080)={&(0x7f0000000000)="660fc6441768ff66643e46d99b67d91f1536dad68f6900998271000000660f3808dc8fc978c3b248000000669c64a70f01fac402592fbd21000000", 0x4, &(0x7f0000000100)="c47962d56a3c0000a3ad5ea1166b0000d14270534601128fe9e099084329ac94de000000f2440f1237c4214d547b750f3442da34d7", {[0xff]}}, 0x0, 0x8, &(0x7f00000000c0)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001df284dcf91f4830d19de96b2fd46f67443b28ffd1c5c8d01c5e593031b4a5f306e15079a67a2804cf76d067c474bf", @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) 12:34:18 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={0x0}}, 0x2800c090) 12:34:18 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_inet6_udp_SIOCOUTQ(0xffffffffffffffff, 0x5411, &(0x7f0000000000)) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) sendmsg$L2TP_CMD_SESSION_DELETE(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x100, 0x70bd2a, 0x25dfdbff, {}, [@L2TP_ATTR_L2SPEC_TYPE={0x5}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x3}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x81}, @L2TP_ATTR_UDP_CSUM={0x5, 0xd, 0x1}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x923}, @L2TP_ATTR_FD={0x8, 0x17, @l2tp6}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @mcast2}]}, 0x60}, 0x1, 0x0, 0x0, 0x800}, 0x8000) 12:34:18 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0xffffffffffffffae, r1, 0x1}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_STOP(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4002040}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x100, 0x70bd2d, 0x25dfdbfb, {}, ["", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x800}, 0x50) [ 1062.727904] nbd: must specify a device to reconfigure [ 1062.746033] block nbd0: not configured, cannot reconfigure 12:34:18 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1, 0x0, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:18 executing program 5: rt_sigaction(0x26, &(0x7f0000000080)={&(0x7f0000000000)="660fc6441768ff66643e46d99b67d91f1536dad68f6900998271000000660f3808dc8fc978c3b248000000669c64a70f01fac402592fbd21000000", 0x4, &(0x7f0000000100)="c47962d56a3c0000a3ad5ea1166b0000d14270534601128fe9e099084329ac94de000000f2440f1237c4214d547b750f3442da34d7", {[0xff]}}, 0x0, 0x8, &(0x7f00000000c0)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001df284dcf91f4830d19de96b2fd46f67443b28ffd1c5c8d01c5e593031b4a5f306e15079a67a2804cf76d067c474bf", @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) 12:34:18 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="0000000000000000000003000000a37e7b19b7a904988ef473fca171c46e0f6186f5206420e635"], 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000040)={0x58, r5, 0x8, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '(/-'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x58}, 0x1, 0x0, 0x0, 0x1}, 0x40040) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) (async) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r7) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000000c0)=ANY=[@ANYBLOB="ff03000057d7624eee1d630e31afef889a14f9c6ba6c31ea2f7f1abd4204dae047f65570c9ea7a567f04ea2b7e9d2c9ff54943ad3e78ce568b4c8953cff52ba6db2dc6c97ef0b8955121021ea3d6d9be84253778e85debf98ff8855e9d626e70ca99b40d8ba791fc8d95341b87bb1c2beb8bda3641ae24e2e71ef107a90c2f65f05176faaa", @ANYRES16=r8, @ANYBLOB="0052abd29777b0c61458ea00000000eb000000000000838d36c66363b95278f9c69694b9a1230022003a84ecac4027a00cae5d992565cdc6c3640d3b37902ed2"], 0x14}}, 0x0) 12:34:18 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={0x0}}, 0x2800c090) [ 1062.862535] nbd: must specify a device to reconfigure 12:34:18 executing program 5: rt_sigaction(0x26, &(0x7f0000000080)={&(0x7f0000000000)="660fc6441768ff66643e46d99b67d91f1536dad68f6900998271000000660f3808dc8fc978c3b248000000669c64a70f01fac402592fbd21000000", 0x4, &(0x7f0000000100)="c47962d56a3c0000a3ad5ea1166b0000d14270534601128fe9e099084329ac94de000000f2440f1237c4214d547b750f3442da34d7", {[0xff]}}, 0x0, 0x8, &(0x7f00000000c0)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001df284dcf91f4830d19de96b2fd46f67443b28ffd1c5c8d01c5e593031b4a5f306e15079a67a2804cf76d067c474bf", @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) rt_sigaction(0x26, &(0x7f0000000080)={&(0x7f0000000000)="660fc6441768ff66643e46d99b67d91f1536dad68f6900998271000000660f3808dc8fc978c3b248000000669c64a70f01fac402592fbd21000000", 0x4, &(0x7f0000000100)="c47962d56a3c0000a3ad5ea1166b0000d14270534601128fe9e099084329ac94de000000f2440f1237c4214d547b750f3442da34d7", {[0xff]}}, 0x0, 0x8, &(0x7f00000000c0)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001df284dcf91f4830d19de96b2fd46f67443b28ffd1c5c8d01c5e593031b4a5f306e15079a67a2804cf76d067c474bf", @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) (async) 12:34:18 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1, 0x0, 0x0, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:18 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0xffffffffffffffae, r1, 0x1}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_STOP(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4002040}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x100, 0x70bd2d, 0x25dfdbfb, {}, ["", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x800}, 0x50) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0xffffffffffffffae, r1, 0x1}, 0x14}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NET_DM_CMD_STOP(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4002040}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x100, 0x70bd2d, 0x25dfdbfb, {}, ["", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x800}, 0x50) (async) 12:34:18 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) ioctl$sock_inet6_udp_SIOCOUTQ(0xffffffffffffffff, 0x5411, &(0x7f0000000000)) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) (async) sendmsg$L2TP_CMD_SESSION_DELETE(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x100, 0x70bd2a, 0x25dfdbff, {}, [@L2TP_ATTR_L2SPEC_TYPE={0x5}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x3}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x81}, @L2TP_ATTR_UDP_CSUM={0x5, 0xd, 0x1}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x923}, @L2TP_ATTR_FD={0x8, 0x17, @l2tp6}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @mcast2}]}, 0x60}, 0x1, 0x0, 0x0, 0x800}, 0x8000) 12:34:18 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1, 0x0, 0x0, {}, ["", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:18 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14}, 0x52}}, 0x2800c090) [ 1062.945953] block nbd0: not configured, cannot reconfigure 12:34:18 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="0000000000000000000003000000a37e7b19b7a904988ef473fca171c46e0f6186f5206420e635"], 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000040)={0x58, r5, 0x8, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '(/-'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x58}, 0x1, 0x0, 0x0, 0x1}, 0x40040) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r7) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000000c0)=ANY=[@ANYBLOB="ff03000057d7624eee1d630e31afef889a14f9c6ba6c31ea2f7f1abd4204dae047f65570c9ea7a567f04ea2b7e9d2c9ff54943ad3e78ce568b4c8953cff52ba6db2dc6c97ef0b8955121021ea3d6d9be84253778e85debf98ff8855e9d626e70ca99b40d8ba791fc8d95341b87bb1c2beb8bda3641ae24e2e71ef107a90c2f65f05176faaa", @ANYRES16=r8, @ANYBLOB="0052abd29777b0c61458ea00000000eb000000000000838d36c66363b95278f9c69694b9a1230022003a84ecac4027a00cae5d992565cdc6c3640d3b37902ed2"], 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="0000000000000000000003000000a37e7b19b7a904988ef473fca171c46e0f6186f5206420e635"], 0x14}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000040)={0x58, r5, 0x8, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '(/-'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x58}, 0x1, 0x0, 0x0, 0x1}, 0x40040) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r7) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000000c0)=ANY=[@ANYBLOB="ff03000057d7624eee1d630e31afef889a14f9c6ba6c31ea2f7f1abd4204dae047f65570c9ea7a567f04ea2b7e9d2c9ff54943ad3e78ce568b4c8953cff52ba6db2dc6c97ef0b8955121021ea3d6d9be84253778e85debf98ff8855e9d626e70ca99b40d8ba791fc8d95341b87bb1c2beb8bda3641ae24e2e71ef107a90c2f65f05176faaa", @ANYRES16=r8, @ANYBLOB="0052abd29777b0c61458ea00000000eb000000000000838d36c66363b95278f9c69694b9a1230022003a84ecac4027a00cae5d992565cdc6c3640d3b37902ed2"], 0x14}}, 0x0) (async) 12:34:18 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r1) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x28, r3, 0x200, 0x70bd27, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffc01}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000081}, 0x11) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) sendmsg$NET_DM_CMD_STOP(r5, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x800, 0x70bd2d, 0x25dfdbfc, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x40}, 0x4) 12:34:18 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0xffffffffffffffae, r1, 0x1}, 0x14}}, 0x0) (async, rerun: 32) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) sendmsg$NET_DM_CMD_STOP(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4002040}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x100, 0x70bd2d, 0x25dfdbfb, {}, ["", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x800}, 0x50) [ 1063.035841] nbd: must specify a device to reconfigure 12:34:18 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1, 0x0, 0x0, {}, ["", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:18 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_inet6_udp_SIOCOUTQ(0xffffffffffffffff, 0x5411, &(0x7f0000000000)) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) sendmsg$L2TP_CMD_SESSION_DELETE(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x100, 0x70bd2a, 0x25dfdbff, {}, [@L2TP_ATTR_L2SPEC_TYPE={0x5}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x3}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x81}, @L2TP_ATTR_UDP_CSUM={0x5, 0xd, 0x1}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x923}, @L2TP_ATTR_FD={0x8, 0x17, @l2tp6}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @mcast2}]}, 0x60}, 0x1, 0x0, 0x0, 0x800}, 0x8000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) ioctl$sock_inet6_udp_SIOCOUTQ(0xffffffffffffffff, 0x5411, &(0x7f0000000000)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) (async) sendmsg$L2TP_CMD_SESSION_DELETE(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x100, 0x70bd2a, 0x25dfdbff, {}, [@L2TP_ATTR_L2SPEC_TYPE={0x5}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x3}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x81}, @L2TP_ATTR_UDP_CSUM={0x5, 0xd, 0x1}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x923}, @L2TP_ATTR_FD={0x8, 0x17, @l2tp6}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @mcast2}]}, 0x60}, 0x1, 0x0, 0x0, 0x800}, 0x8000) (async) 12:34:18 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14}, 0x52}}, 0x0) 12:34:18 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1, 0x0, 0x0, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) [ 1063.108138] block nbd0: not configured, cannot reconfigure [ 1063.139581] nbd: must specify a device to reconfigure 12:34:18 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r1) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x28, r3, 0x200, 0x70bd27, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffc01}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000081}, 0x11) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) (async) sendmsg$NET_DM_CMD_STOP(r5, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x800, 0x70bd2d, 0x25dfdbfc, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x40}, 0x4) [ 1063.210621] nbd: must specify a device to reconfigure 12:34:18 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r6) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000200)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x1c, r7, 0x8, 0x70bd2d, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000240)={0x50, r8, 0x200, 0x70bd2d, 0x25dfdbdf, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xadc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x50}, 0x1, 0x0, 0x0, 0x4000000}, 0x40400d0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000040)=ANY=[@ANYBLOB="14000c00bdcc0000", @ANYRES16=r9, @ANYBLOB=' @\x00\x00'], 0x14}}, 0x0) 12:34:18 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r1) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x28, r3, 0x200, 0x70bd27, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffc01}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000081}, 0x11) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) sendmsg$NET_DM_CMD_STOP(r5, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x800, 0x70bd2d, 0x25dfdbfc, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x40}, 0x4) 12:34:18 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x20, 0x0, 0x10, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}]}, 0x20}, 0x1, 0x0, 0x0, 0x10}, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x4000006, 0x101800) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_open_dev$audion(&(0x7f0000000000), 0x3, 0x90000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000100)=ANY=[@ANYBLOB="a0000000", @ANYRES16=r3, @ANYBLOB="010000000000000000000300000009000a004027242a240000003c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="080001000fec97a7aa9292a24c7a6f1a926d4a6434297192b93b50a0347dd41385679acd4406446c25ad08299af44b0ebc6b485c9211e406a2613abdb7f702fd284b08d4a226c918507481f255701f6534cf9f39d3c8833696dee252ed448daed6e44bd2a48998850afc37b82eb54d87e8b29738fac1559db324cf6de0466efc8f800f2c70f1820979bbc1", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r4, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r5, @ANYBLOB="08000100", @ANYRES32=r6, @ANYBLOB="08000100000000000b000a0023242c5d2f5d3a000c00040003000000000000000c00060003000000000000000c00040007000000000000000c000800ffffffffffffff7f"], 0xa0}, 0x1, 0x0, 0x0, 0x10}, 0x0) 12:34:18 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r1) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x28, r3, 0x200, 0x70bd27, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffc01}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000081}, 0x11) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) sendmsg$NET_DM_CMD_STOP(r5, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x800, 0x70bd2d, 0x25dfdbfc, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x40}, 0x4) [ 1063.276804] nbd: must specify a device to reconfigure [ 1063.285195] nbd: must specify a device to reconfigure 12:34:18 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1, 0x0, 0x0, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:18 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) [ 1063.361654] block nbd0: not configured, cannot reconfigure [ 1063.385633] nbd: must specify a device to reconfigure [ 1063.396589] block nbd0: not configured, cannot reconfigure 12:34:18 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x20, 0x0, 0x10, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}]}, 0x20}, 0x1, 0x0, 0x0, 0x10}, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x4000006, 0x101800) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) (async) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_open_dev$audion(&(0x7f0000000000), 0x3, 0x90000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000100)=ANY=[@ANYBLOB="a0000000", @ANYRES16=r3, @ANYBLOB="010000000000000000000300000009000a004027242a240000003c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="080001000fec97a7aa9292a24c7a6f1a926d4a6434297192b93b50a0347dd41385679acd4406446c25ad08299af44b0ebc6b485c9211e406a2613abdb7f702fd284b08d4a226c918507481f255701f6534cf9f39d3c8833696dee252ed448daed6e44bd2a48998850afc37b82eb54d87e8b29738fac1559db324cf6de0466efc8f800f2c70f1820979bbc1", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r4, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r5, @ANYBLOB="08000100", @ANYRES32=r6, @ANYBLOB="08000100000000000b000a0023242c5d2f5d3a000c00040003000000000000000c00060003000000000000000c00040007000000000000000c000800ffffffffffffff7f"], 0xa0}, 0x1, 0x0, 0x0, 0x10}, 0x0) 12:34:18 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0xffffffffffffffae, r1, 0x1}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_STOP(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4002040}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x100, 0x70bd2d, 0x25dfdbfb, {}, ["", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x800}, 0x50) 12:34:18 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r6) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000200)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x1c, r7, 0x8, 0x70bd2d, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000240)={0x50, r8, 0x200, 0x70bd2d, 0x25dfdbdf, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xadc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x50}, 0x1, 0x0, 0x0, 0x4000000}, 0x40400d0) (async, rerun: 64) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000040)=ANY=[@ANYBLOB="14000c00bdcc0000", @ANYRES16=r9, @ANYBLOB=' @\x00\x00'], 0x14}}, 0x0) 12:34:18 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:18 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) syz_genetlink_get_family_id$nbd(0x0, r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x39, r3, 0x1, 0xfffffffd, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x20}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) syz_genetlink_get_family_id$net_dm(&(0x7f0000000080), r4) [ 1063.412370] nla_parse: 4 callbacks suppressed [ 1063.412375] netlink: 68 bytes leftover after parsing attributes in process `syz-executor.2'. [ 1063.432159] nbd: must specify a device to reconfigure [ 1063.438873] nbd: must specify a device to reconfigure [ 1063.449590] nbd: must specify a device to reconfigure 12:34:18 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) (async) 12:34:18 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:18 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:18 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) (async) syz_genetlink_get_family_id$nbd(0x0, r1) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x39, r3, 0x1, 0xfffffffd, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x20}}, 0x0) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) syz_genetlink_get_family_id$net_dm(&(0x7f0000000080), r4) [ 1063.632974] block nbd0: not configured, cannot reconfigure [ 1063.651017] nbd: must specify a device to reconfigure [ 1063.658853] nbd: must specify a device to reconfigure 12:34:19 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x20, 0x0, 0x10, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}]}, 0x20}, 0x1, 0x0, 0x0, 0x10}, 0x0) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x4000006, 0x101800) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_open_dev$audion(&(0x7f0000000000), 0x3, 0x90000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000100)=ANY=[@ANYBLOB="a0000000", @ANYRES16=r3, @ANYBLOB="010000000000000000000300000009000a004027242a240000003c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="080001000fec97a7aa9292a24c7a6f1a926d4a6434297192b93b50a0347dd41385679acd4406446c25ad08299af44b0ebc6b485c9211e406a2613abdb7f702fd284b08d4a226c918507481f255701f6534cf9f39d3c8833696dee252ed448daed6e44bd2a48998850afc37b82eb54d87e8b29738fac1559db324cf6de0466efc8f800f2c70f1820979bbc1", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r4, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r5, @ANYBLOB="08000100", @ANYRES32=r6, @ANYBLOB="08000100000000000b000a0023242c5d2f5d3a000c00040003000000000000000c00060003000000000000000c00040007000000000000000c000800ffffffffffffff7f"], 0xa0}, 0x1, 0x0, 0x0, 0x10}, 0x0) 12:34:19 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) [ 1063.678492] nbd: must specify a device to reconfigure 12:34:19 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:19 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) syz_genetlink_get_family_id$nbd(0x0, r1) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x39, r3, 0x1, 0xfffffffd, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x20}}, 0x0) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000080), r4) 12:34:19 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:19 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r6) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000200)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x1c, r7, 0x8, 0x70bd2d, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000240)={0x50, r8, 0x200, 0x70bd2d, 0x25dfdbdf, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xadc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x50}, 0x1, 0x0, 0x0, 0x4000000}, 0x40400d0) (async, rerun: 64) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000040)=ANY=[@ANYBLOB="14000c00bdcc0000", @ANYRES16=r9, @ANYBLOB=' @\x00\x00'], 0x14}}, 0x0) [ 1063.756814] nbd: must specify a device to reconfigure 12:34:19 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:19 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r6) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000200)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x1c, r7, 0x8, 0x70bd2d, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000240)={0x50, r8, 0x200, 0x70bd2d, 0x25dfdbdf, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xadc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x50}, 0x1, 0x0, 0x0, 0x4000000}, 0x40400d0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000040)=ANY=[@ANYBLOB="14000c00bdcc0000", @ANYRES16=r9, @ANYBLOB=' @\x00\x00'], 0x14}}, 0x0) 12:34:19 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="010000000000000000420300000075ae2fa93148e23ab1d527cf37a53ff9765faa423918edfb8dc8a2e2a4e8bdcc066ef766c43a4b94769f115063eb88bbbf5eb64fb707e860aee352f9f16b14b3703af6a1a7dcb5cfa81660de0b751b489c8059137699172be3e6e2ad635aaeccfd5d203bd93586ca829fe401235a66f4089c80ebb6b4928cb8104d04620bded230405252b618d3c3"], 0x14}}, 0x0) [ 1063.794623] netlink: 68 bytes leftover after parsing attributes in process `syz-executor.2'. [ 1063.817536] nbd: must specify a device to reconfigure 12:34:19 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB='2\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010000000000000000000300000008000100000000000d000a002f6465762f64737000000000"], 0x2c}}, 0x0) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x1c, r4, 0x10, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x44044}, 0xc0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r6) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x2c, r8, 0x100, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5ae}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8000}, 0x4000000) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r10 = bpf$ITER_CREATE(0x21, &(0x7f0000000280), 0x8) sendmsg$NBD_CMD_DISCONNECT(r9, &(0x7f0000000380)={&(0x7f0000000240), 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x58, r8, 0x200, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r10}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '$'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '+.**\xb7'}]}, 0x58}, 0x1, 0x0, 0x0, 0x40000}, 0x4000080) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r11, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) [ 1063.871634] block nbd0: not configured, cannot reconfigure 12:34:19 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x0, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:19 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000040)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000000400708e062636fd0b7e2ac8740000430000000c0003000600000000000000"], 0x20}, 0x1, 0x0, 0x0, 0x4000}, 0x0) r3 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(0xffffffffffffffff, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x60, r3, 0x1, 0x70bd2b, 0x25dfdbfc, {}, [@L2TP_ATTR_UDP_SPORT={0x6, 0x1a, 0x4e23}, @L2TP_ATTR_IP_DADDR={0x8, 0x19, @local}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}, @L2TP_ATTR_OFFSET={0x6, 0x3, 0x7f}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x1}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0xae}, @L2TP_ATTR_ENCAP_TYPE={0x6, 0x2, 0x1}, @L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x7}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x6}]}, 0x60}, 0x1, 0x0, 0x0, 0x8080}, 0x82e94fde7ba63d05) [ 1063.967957] nbd: must specify a device to reconfigure 12:34:19 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)) r0 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) pipe2$watch_queue(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x54, 0x0, 0x100, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '['}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7f}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r1}, {0x8, 0x1, r0}]}]}, 0x54}, 0x1, 0x0, 0x0, 0x40}, 0x4c081) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_inet6_udp_SIOCOUTQ(r0, 0x5411, &(0x7f00000001c0)) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="0000000000007ce1eea403000000"], 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000240), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYRESHEX=r2], 0x14}, 0x1, 0x0, 0x0, 0x4040801}, 0x0) 12:34:19 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="010000000000000000420300000075ae2fa93148e23ab1d527cf37a53ff9765faa423918edfb8dc8a2e2a4e8bdcc066ef766c43a4b94769f115063eb88bbbf5eb64fb707e860aee352f9f16b14b3703af6a1a7dcb5cfa81660de0b751b489c8059137699172be3e6e2ad635aaeccfd5d203bd93586ca829fe401235a66f4089c80ebb6b4928cb8104d04620bded230405252b618d3c3"], 0x14}}, 0x0) 12:34:19 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB='2\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010000000000000000000300000008000100000000000d000a002f6465762f64737000000000"], 0x2c}}, 0x0) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x1c, r4, 0x10, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x44044}, 0xc0) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r6) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x2c, r8, 0x100, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5ae}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8000}, 0x4000000) (async) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r10 = bpf$ITER_CREATE(0x21, &(0x7f0000000280), 0x8) sendmsg$NBD_CMD_DISCONNECT(r9, &(0x7f0000000380)={&(0x7f0000000240), 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x58, r8, 0x200, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r10}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '$'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '+.**\xb7'}]}, 0x58}, 0x1, 0x0, 0x0, 0x40000}, 0x4000080) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r11, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:19 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x40042}, 0x0) [ 1064.007698] block nbd3: not configured, cannot reconfigure [ 1064.016518] nbd: must specify a device to reconfigure [ 1064.042966] block nbd3: not configured, cannot reconfigure 12:34:19 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x40042}, 0x0) 12:34:19 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)) (async) r0 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) (async) pipe2$watch_queue(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x54, 0x0, 0x100, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '['}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7f}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r1}, {0x8, 0x1, r0}]}]}, 0x54}, 0x1, 0x0, 0x0, 0x40}, 0x4c081) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) ioctl$sock_inet6_udp_SIOCOUTQ(r0, 0x5411, &(0x7f00000001c0)) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="0000000000007ce1eea403000000"], 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000240), r4) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYRESHEX=r2], 0x14}, 0x1, 0x0, 0x0, 0x4040801}, 0x0) [ 1064.104527] nbd: must specify a device to reconfigure 12:34:19 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000040)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000000400708e062636fd0b7e2ac8740000430000000c0003000600000000000000"], 0x20}, 0x1, 0x0, 0x0, 0x4000}, 0x0) r3 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(0xffffffffffffffff, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x60, r3, 0x1, 0x70bd2b, 0x25dfdbfc, {}, [@L2TP_ATTR_UDP_SPORT={0x6, 0x1a, 0x4e23}, @L2TP_ATTR_IP_DADDR={0x8, 0x19, @local}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}, @L2TP_ATTR_OFFSET={0x6, 0x3, 0x7f}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x1}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0xae}, @L2TP_ATTR_ENCAP_TYPE={0x6, 0x2, 0x1}, @L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x7}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x6}]}, 0x60}, 0x1, 0x0, 0x0, 0x8080}, 0x82e94fde7ba63d05) 12:34:19 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="010000000000000000420300000075ae2fa93148e23ab1d527cf37a53ff9765faa423918edfb8dc8a2e2a4e8bdcc066ef766c43a4b94769f115063eb88bbbf5eb64fb707e860aee352f9f16b14b3703af6a1a7dcb5cfa81660de0b751b489c8059137699172be3e6e2ad635aaeccfd5d203bd93586ca829fe401235a66f4089c80ebb6b4928cb8104d04620bded230405252b618d3c3"], 0x14}}, 0x0) 12:34:19 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)) r0 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) pipe2$watch_queue(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x54, 0x0, 0x100, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '['}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7f}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r1}, {0x8, 0x1, r0}]}]}, 0x54}, 0x1, 0x0, 0x0, 0x40}, 0x4c081) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_inet6_udp_SIOCOUTQ(r0, 0x5411, &(0x7f00000001c0)) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="0000000000007ce1eea403000000"], 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000240), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYRESHEX=r2], 0x14}, 0x1, 0x0, 0x0, 0x4040801}, 0x0) 12:34:19 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB='2\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010000000000000000000300000008000100000000000d000a002f6465762f64737000000000"], 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x1c, r4, 0x10, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x44044}, 0xc0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r6) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x2c, r8, 0x100, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5ae}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8000}, 0x4000000) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r10 = bpf$ITER_CREATE(0x21, &(0x7f0000000280), 0x8) sendmsg$NBD_CMD_DISCONNECT(r9, &(0x7f0000000380)={&(0x7f0000000240), 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x58, r8, 0x200, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r10}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '$'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '+.**\xb7'}]}, 0x58}, 0x1, 0x0, 0x0, 0x40000}, 0x4000080) (async) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r11, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) [ 1064.152420] nbd: must specify a device to reconfigure 12:34:19 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)) r0 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) pipe2$watch_queue(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x54, 0x0, 0x100, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '['}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7f}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r1}, {0x8, 0x1, r0}]}]}, 0x54}, 0x1, 0x0, 0x0, 0x40}, 0x4c081) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_inet6_udp_SIOCOUTQ(r0, 0x5411, &(0x7f00000001c0)) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="0000000000007ce1eea403000000"], 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000240), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYRESHEX=r2], 0x14}, 0x1, 0x0, 0x0, 0x4040801}, 0x0) 12:34:19 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000040)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000000400708e062636fd0b7e2ac8740000430000000c0003000600000000000000"], 0x20}, 0x1, 0x0, 0x0, 0x4000}, 0x0) (async) r3 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(0xffffffffffffffff, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x60, r3, 0x1, 0x70bd2b, 0x25dfdbfc, {}, [@L2TP_ATTR_UDP_SPORT={0x6, 0x1a, 0x4e23}, @L2TP_ATTR_IP_DADDR={0x8, 0x19, @local}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}, @L2TP_ATTR_OFFSET={0x6, 0x3, 0x7f}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x1}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0xae}, @L2TP_ATTR_ENCAP_TYPE={0x6, 0x2, 0x1}, @L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x7}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x6}]}, 0x60}, 0x1, 0x0, 0x0, 0x8080}, 0x82e94fde7ba63d05) 12:34:19 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)) r0 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) pipe2$watch_queue(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x54, 0x0, 0x100, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '['}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7f}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r1}, {0x8, 0x1, r0}]}]}, 0x54}, 0x1, 0x0, 0x0, 0x40}, 0x4c081) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) ioctl$sock_inet6_udp_SIOCOUTQ(r0, 0x5411, &(0x7f00000001c0)) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="0000000000007ce1eea403000000"], 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000240), r4) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYRESHEX=r2], 0x14}, 0x1, 0x0, 0x0, 0x4040801}, 0x0) [ 1064.244514] nbd: must specify a device to reconfigure 12:34:19 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000000c0)={0x4c, r1, 0x200, 0x0, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x100000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}]}, 0x4c}, 0x1, 0x0, 0x0, 0x84}, 0x0) 12:34:19 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$L2TP_CMD_SESSION_CREATE(0xffffffffffffffff, 0x0, 0x0) ioctl$TIOCGPTPEER(0xffffffffffffffff, 0x5441, 0xfffffffffffffff7) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000180)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="27540000000000201ece43893e4bf221981627b7740addaf113f0f5967dd9418b8e4068356cab5480917b75ed36518451474dfb617a1af073aa406d7cc71dbf9e0bfc34046ad303f5079ec84b11126a80c4c247bf0f4698294647a3f9774a3cded5033baf940762b"], 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, r2, 0x1, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x10}, 0x0) openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000380), 0x414902, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) r7 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000280)={&(0x7f0000000440)={0x85, r2, 0x10, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '$'}]}, 0xa8}, 0x1, 0x0, 0x0, 0x28800}, 0x80) 12:34:19 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) [ 1064.301381] nbd: must specify a device to reconfigure 12:34:19 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000780), 0xffffffffffffffff) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000006c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="01000000000023000a002f6465762f6473700000000000000000000000000000000000000000db361cc7c503d3860528f4175a1a4a1acf8043b0ab742f029d972065ddfaa6400081fbe149cc56964f492fe465e4f19962e8b83bda311e87d86daaeee14d162450c7be5980f38a28ef3cf9a1b2e16408845038d9a59e69fee83ad930f55a838cf804d88c1d1264395f737277d158de2084a8fd2f958a0030497fdcb142c80000000000"], 0x2c}}, 0x0) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000680)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x2218200}, 0xc, &(0x7f0000000100)={&(0x7f00000004c0)={0x78, r5, 0x4, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7ffffffe}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xc}]}, 0x78}}, 0x4000) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) r7 = bpf$ITER_CREATE(0x21, &(0x7f0000000140), 0x8) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000280)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x94, r3, 0x8, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r6}, {0x8, 0x1, r7}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x57}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8000}, @NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '\'\'#.$'}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x94}, 0x1, 0x0, 0x0, 0x44080}, 0x40800) r8 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r8, 0x0, 0x0) r9 = socket$inet6_udp(0xa, 0x2, 0x0) sendmsg$L2TP_CMD_NOOP(r8, &(0x7f0000000440)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000400)={&(0x7f0000000300)={0x98, 0x0, 0x610, 0x70bd26, 0x25dfdbfb, {}, [@L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x934}, @L2TP_ATTR_IP6_DADDR={0x14, 0x20, @remote}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01'}, @L2TP_ATTR_VLAN_ID={0x6, 0xe, 0xb4}, @L2TP_ATTR_SEND_SEQ={0x5, 0x13, 0x6}, @L2TP_ATTR_L2SPEC_TYPE={0x5, 0x5, 0x1}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @remote}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @private0}, @L2TP_ATTR_FD={0x8, 0x17, @udp6=r9}, @L2TP_ATTR_VLAN_ID={0x6, 0xe, 0xe9dc}]}, 0x98}}, 0x8000) ioctl$KDGKBENT(0xffffffffffffffff, 0x4b46, &(0x7f0000000000)={0xff, 0x5, 0x5}) ioctl$GIO_FONT(0xffffffffffffffff, 0x4b60, &(0x7f0000000040)=""/88) 12:34:19 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14003000", @ANYRES16=r2, @ANYBLOB="01000000a84500000000000000"], 0x14}}, 0x0) 12:34:19 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_START(r2, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x200, 0x70bd26, 0x25dfdbfe, {}, ["", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4050}, 0x8001) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$net_dm(&(0x7f00000001c0), r2) sendmsg$NET_DM_CMD_START(r3, &(0x7f0000000280)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x14, r4, 0x20, 0x70bd29, 0x25dfdbfe, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x5}, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r5, 0x1}, 0x14}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000140), r6) 12:34:19 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100000068bd27a7c89e61a1322d"], 0x14}}, 0x0) [ 1064.413632] nbd: must specify an index to disconnect [ 1064.424861] nbd: must specify a device to reconfigure [ 1064.433735] nbd: must specify a device to reconfigure [ 1064.444440] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. 12:34:19 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$L2TP_CMD_SESSION_CREATE(0xffffffffffffffff, 0x0, 0x0) (async) ioctl$TIOCGPTPEER(0xffffffffffffffff, 0x5441, 0xfffffffffffffff7) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000180)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="27540000000000201ece43893e4bf221981627b7740addaf113f0f5967dd9418b8e4068356cab5480917b75ed36518451474dfb617a1af073aa406d7cc71dbf9e0bfc34046ad303f5079ec84b11126a80c4c247bf0f4698294647a3f9774a3cded5033baf940762b"], 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, r2, 0x1, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x10}, 0x0) (async) openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000380), 0x414902, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (async) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) (async) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) r7 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000280)={&(0x7f0000000440)={0x85, r2, 0x10, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '$'}]}, 0xa8}, 0x1, 0x0, 0x0, 0x28800}, 0x80) 12:34:19 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14003000", @ANYRES16=r2, @ANYBLOB="01000000a84500000000000000"], 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14003000", @ANYRES16=r2, @ANYBLOB="01000000a84500000000000000"], 0x14}}, 0x0) (async) 12:34:19 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000780), 0xffffffffffffffff) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000006c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="01000000000023000a002f6465762f6473700000000000000000000000000000000000000000db361cc7c503d3860528f4175a1a4a1acf8043b0ab742f029d972065ddfaa6400081fbe149cc56964f492fe465e4f19962e8b83bda311e87d86daaeee14d162450c7be5980f38a28ef3cf9a1b2e16408845038d9a59e69fee83ad930f55a838cf804d88c1d1264395f737277d158de2084a8fd2f958a0030497fdcb142c80000000000"], 0x2c}}, 0x0) (async, rerun: 64) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000680)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x2218200}, 0xc, &(0x7f0000000100)={&(0x7f00000004c0)={0x78, r5, 0x4, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7ffffffe}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xc}]}, 0x78}}, 0x4000) (async, rerun: 64) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) (async) r7 = bpf$ITER_CREATE(0x21, &(0x7f0000000140), 0x8) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000280)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x94, r3, 0x8, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r6}, {0x8, 0x1, r7}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x57}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8000}, @NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '\'\'#.$'}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x94}, 0x1, 0x0, 0x0, 0x44080}, 0x40800) r8 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r8, 0x0, 0x0) (async, rerun: 32) r9 = socket$inet6_udp(0xa, 0x2, 0x0) (rerun: 32) sendmsg$L2TP_CMD_NOOP(r8, &(0x7f0000000440)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000400)={&(0x7f0000000300)={0x98, 0x0, 0x610, 0x70bd26, 0x25dfdbfb, {}, [@L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x934}, @L2TP_ATTR_IP6_DADDR={0x14, 0x20, @remote}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01'}, @L2TP_ATTR_VLAN_ID={0x6, 0xe, 0xb4}, @L2TP_ATTR_SEND_SEQ={0x5, 0x13, 0x6}, @L2TP_ATTR_L2SPEC_TYPE={0x5, 0x5, 0x1}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @remote}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @private0}, @L2TP_ATTR_FD={0x8, 0x17, @udp6=r9}, @L2TP_ATTR_VLAN_ID={0x6, 0xe, 0xe9dc}]}, 0x98}}, 0x8000) (async) ioctl$KDGKBENT(0xffffffffffffffff, 0x4b46, &(0x7f0000000000)={0xff, 0x5, 0x5}) (async) ioctl$GIO_FONT(0xffffffffffffffff, 0x4b60, &(0x7f0000000040)=""/88) [ 1064.460022] nbd: must specify a device to reconfigure 12:34:19 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$L2TP_CMD_SESSION_CREATE(0xffffffffffffffff, 0x0, 0x0) ioctl$TIOCGPTPEER(0xffffffffffffffff, 0x5441, 0xfffffffffffffff7) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000180)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="27540000000000201ece43893e4bf221981627b7740addaf113f0f5967dd9418b8e4068356cab5480917b75ed36518451474dfb617a1af073aa406d7cc71dbf9e0bfc34046ad303f5079ec84b11126a80c4c247bf0f4698294647a3f9774a3cded5033baf940762b"], 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, r2, 0x1, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x10}, 0x0) openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000380), 0x414902, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) r7 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000280)={&(0x7f0000000440)={0x85, r2, 0x10, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '$'}]}, 0xa8}, 0x1, 0x0, 0x0, 0x28800}, 0x80) 12:34:19 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) [ 1064.512274] nbd: must specify a device to reconfigure 12:34:19 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_START(r2, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x200, 0x70bd26, 0x25dfdbfe, {}, ["", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4050}, 0x8001) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$net_dm(&(0x7f00000001c0), r2) sendmsg$NET_DM_CMD_START(r3, &(0x7f0000000280)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x14, r4, 0x20, 0x70bd29, 0x25dfdbfe, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x5}, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r5, 0x1}, 0x14}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000140), r6) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NET_DM_CMD_START(r2, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x200, 0x70bd26, 0x25dfdbfe, {}, ["", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4050}, 0x8001) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$net_dm(&(0x7f00000001c0), r2) (async) sendmsg$NET_DM_CMD_START(r3, &(0x7f0000000280)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x14, r4, 0x20, 0x70bd29, 0x25dfdbfe, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x5}, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r5, 0x1}, 0x14}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000140), r6) (async) 12:34:19 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$L2TP_CMD_SESSION_CREATE(0xffffffffffffffff, 0x0, 0x0) ioctl$TIOCGPTPEER(0xffffffffffffffff, 0x5441, 0xfffffffffffffff7) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000180)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="27540000000000201ece43893e4bf221981627b7740addaf113f0f5967dd9418b8e4068356cab5480917b75ed36518451474dfb617a1af073aa406d7cc71dbf9e0bfc34046ad303f5079ec84b11126a80c4c247bf0f4698294647a3f9774a3cded5033baf940762b"], 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, r2, 0x1, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x10}, 0x0) openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000380), 0x414902, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) r7 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000280)={&(0x7f0000000440)={0x85, r2, 0x10, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '$'}]}, 0xa8}, 0x1, 0x0, 0x0, 0x28800}, 0x80) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$L2TP_CMD_SESSION_CREATE(0xffffffffffffffff, 0x0, 0x0) (async) ioctl$TIOCGPTPEER(0xffffffffffffffff, 0x5441, 0xfffffffffffffff7) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000180)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="27540000000000201ece43893e4bf221981627b7740addaf113f0f5967dd9418b8e4068356cab5480917b75ed36518451474dfb617a1af073aa406d7cc71dbf9e0bfc34046ad303f5079ec84b11126a80c4c247bf0f4698294647a3f9774a3cded5033baf940762b"], 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, r2, 0x1, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x10}, 0x0) (async) openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000380), 0x414902, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000280)={&(0x7f0000000440)={0x85, r2, 0x10, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '$'}]}, 0xa8}, 0x1, 0x0, 0x0, 0x28800}, 0x80) (async) [ 1064.548583] nbd: must specify a device to reconfigure [ 1064.559187] nbd: must specify a device to reconfigure [ 1064.596446] nbd: must specify an index to disconnect 12:34:20 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000780), 0xffffffffffffffff) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000006c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="01000000000023000a002f6465762f6473700000000000000000000000000000000000000000db361cc7c503d3860528f4175a1a4a1acf8043b0ab742f029d972065ddfaa6400081fbe149cc56964f492fe465e4f19962e8b83bda311e87d86daaeee14d162450c7be5980f38a28ef3cf9a1b2e16408845038d9a59e69fee83ad930f55a838cf804d88c1d1264395f737277d158de2084a8fd2f958a0030497fdcb142c80000000000"], 0x2c}}, 0x0) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000680)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x2218200}, 0xc, &(0x7f0000000100)={&(0x7f00000004c0)={0x78, r5, 0x4, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7ffffffe}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xc}]}, 0x78}}, 0x4000) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) r7 = bpf$ITER_CREATE(0x21, &(0x7f0000000140), 0x8) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000280)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x94, r3, 0x8, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r6}, {0x8, 0x1, r7}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x57}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8000}, @NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '\'\'#.$'}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x94}, 0x1, 0x0, 0x0, 0x44080}, 0x40800) r8 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r8, 0x0, 0x0) r9 = socket$inet6_udp(0xa, 0x2, 0x0) sendmsg$L2TP_CMD_NOOP(r8, &(0x7f0000000440)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000400)={&(0x7f0000000300)={0x98, 0x0, 0x610, 0x70bd26, 0x25dfdbfb, {}, [@L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x934}, @L2TP_ATTR_IP6_DADDR={0x14, 0x20, @remote}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01'}, @L2TP_ATTR_VLAN_ID={0x6, 0xe, 0xb4}, @L2TP_ATTR_SEND_SEQ={0x5, 0x13, 0x6}, @L2TP_ATTR_L2SPEC_TYPE={0x5, 0x5, 0x1}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @remote}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @private0}, @L2TP_ATTR_FD={0x8, 0x17, @udp6=r9}, @L2TP_ATTR_VLAN_ID={0x6, 0xe, 0xe9dc}]}, 0x98}}, 0x8000) ioctl$KDGKBENT(0xffffffffffffffff, 0x4b46, &(0x7f0000000000)={0xff, 0x5, 0x5}) ioctl$GIO_FONT(0xffffffffffffffff, 0x4b60, &(0x7f0000000040)=""/88) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000780), 0xffffffffffffffff) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) (async) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000006c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="01000000000023000a002f6465762f6473700000000000000000000000000000000000000000db361cc7c503d3860528f4175a1a4a1acf8043b0ab742f029d972065ddfaa6400081fbe149cc56964f492fe465e4f19962e8b83bda311e87d86daaeee14d162450c7be5980f38a28ef3cf9a1b2e16408845038d9a59e69fee83ad930f55a838cf804d88c1d1264395f737277d158de2084a8fd2f958a0030497fdcb142c80000000000"], 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000680)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x2218200}, 0xc, &(0x7f0000000100)={&(0x7f00000004c0)={0x78, r5, 0x4, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7ffffffe}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xc}]}, 0x78}}, 0x4000) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) (async) bpf$ITER_CREATE(0x21, &(0x7f0000000140), 0x8) (async) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000280)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x94, r3, 0x8, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r6}, {0x8, 0x1, r7}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x57}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8000}, @NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '\'\'#.$'}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x94}, 0x1, 0x0, 0x0, 0x44080}, 0x40800) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r8, 0x0, 0x0) (async) socket$inet6_udp(0xa, 0x2, 0x0) (async) sendmsg$L2TP_CMD_NOOP(r8, &(0x7f0000000440)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000400)={&(0x7f0000000300)={0x98, 0x0, 0x610, 0x70bd26, 0x25dfdbfb, {}, [@L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x934}, @L2TP_ATTR_IP6_DADDR={0x14, 0x20, @remote}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01'}, @L2TP_ATTR_VLAN_ID={0x6, 0xe, 0xb4}, @L2TP_ATTR_SEND_SEQ={0x5, 0x13, 0x6}, @L2TP_ATTR_L2SPEC_TYPE={0x5, 0x5, 0x1}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @remote}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @private0}, @L2TP_ATTR_FD={0x8, 0x17, @udp6=r9}, @L2TP_ATTR_VLAN_ID={0x6, 0xe, 0xe9dc}]}, 0x98}}, 0x8000) (async) ioctl$KDGKBENT(0xffffffffffffffff, 0x4b46, &(0x7f0000000000)={0xff, 0x5, 0x5}) (async) ioctl$GIO_FONT(0xffffffffffffffff, 0x4b60, &(0x7f0000000040)=""/88) (async) 12:34:20 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) [ 1064.620011] nbd: must specify a device to reconfigure [ 1064.637801] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 1064.657688] nbd: must specify a device to reconfigure 12:34:20 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14003000", @ANYRES16=r2, @ANYBLOB="01000000a84500000000000000"], 0x14}}, 0x0) 12:34:20 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) [ 1064.676460] nbd: must specify an index to disconnect [ 1064.685737] nbd: must specify a device to reconfigure [ 1064.700504] nbd: must specify a device to reconfigure 12:34:20 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_START(r2, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r1, 0x200, 0x70bd26, 0x25dfdbfe, {}, ["", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4050}, 0x8001) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$net_dm(&(0x7f00000001c0), r2) sendmsg$NET_DM_CMD_START(r3, &(0x7f0000000280)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x14, r4, 0x20, 0x70bd29, 0x25dfdbfe, {}, ["", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x5}, 0x10) (async) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r5, 0x1}, 0x14}}, 0x0) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000140), r6) 12:34:20 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) r4 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000140), r0) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r4, 0x8, 0x70bd29, 0x25d7dbff, {}, ["", "", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x80) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000180)=ANY=[@ANYBLOB="804babb8fe11d4e3fc7da04359021e000000", @ANYRES16=r3, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) [ 1064.735058] nbd: must specify a device to reconfigure 12:34:20 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) 12:34:20 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r3, @ANYBLOB="0100f3ffffffffffffff03000000"], 0x14}}, 0x0) [ 1064.775940] nbd: must specify a device to reconfigure 12:34:20 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, r2, 0x400, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}]}, 0x20}, 0x1, 0x0, 0x0, 0x4000000}, 0x40000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:20 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) (async) r4 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000140), r0) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r4, 0x8, 0x70bd29, 0x25d7dbff, {}, ["", "", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x80) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000180)=ANY=[@ANYBLOB="804babb8fe11d4e3fc7da04359021e000000", @ANYRES16=r3, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) [ 1064.819870] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 1064.847862] nbd: must specify a device to reconfigure 12:34:20 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x30, r2, 0x200, 0x70bd29, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0xd7}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0xffffffffffffff9c, 0x1, 0x0}]}, 0x30}, 0x1, 0x0, 0x0, 0x20008024}, 0x0) 12:34:20 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, 0x0, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) [ 1064.874493] nbd: must specify a device to reconfigure [ 1064.891798] nbd: must specify a device to reconfigure 12:34:20 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r0) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r3, @ANYBLOB="0100f3ffffffffffffff03000000"], 0x14}}, 0x0) [ 1064.919184] nbd: must specify a device to reconfigure 12:34:20 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) 12:34:20 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) r4 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000140), r0) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r4, 0x8, 0x70bd29, 0x25d7dbff, {}, ["", "", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x80) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000180)=ANY=[@ANYBLOB="804babb8fe11d4e3fc7da04359021e000000", @ANYRES16=r3, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000140), r0) (async) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r4, 0x8, 0x70bd29, 0x25d7dbff, {}, ["", "", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x80) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000180)=ANY=[@ANYBLOB="804babb8fe11d4e3fc7da04359021e000000", @ANYRES16=r3, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) (async) 12:34:20 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, r2, 0x400, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}]}, 0x20}, 0x1, 0x0, 0x0, 0x4000000}, 0x40000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, r2, 0x400, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}]}, 0x20}, 0x1, 0x0, 0x0, 0x4000000}, 0x40000) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) (async) [ 1064.976764] nbd: must specify a device to reconfigure 12:34:20 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, 0x0, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:20 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x30, r2, 0x200, 0x70bd29, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0xd7}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0xffffffffffffff9c, 0x1, 0x0}]}, 0x30}, 0x1, 0x0, 0x0, 0x20008024}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x30, r2, 0x200, 0x70bd29, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0xd7}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0xffffffffffffff9c, 0x1, 0x0}]}, 0x30}, 0x1, 0x0, 0x0, 0x20008024}, 0x0) (async) [ 1065.012334] nbd: must specify a device to reconfigure 12:34:20 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r0) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r3, @ANYBLOB="0100f3ffffffffffffff03000000"], 0x14}}, 0x0) 12:34:20 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r1, 0x1}, 0x14}}, 0x0) getpid() [ 1065.069522] nbd: must specify a device to reconfigure 12:34:20 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) [ 1065.092637] nbd: must specify a device to reconfigure 12:34:20 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, 0x0, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) [ 1065.148242] nbd: must specify a device to reconfigure 12:34:20 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, r2, 0x400, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}]}, 0x20}, 0x1, 0x0, 0x0, 0x4000000}, 0x40000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:20 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r1, 0x1}, 0x14}}, 0x0) (async) getpid() 12:34:20 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x30, r2, 0x200, 0x70bd29, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0xd7}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0xffffffffffffff9c, 0x1, 0x0}]}, 0x30}, 0x1, 0x0, 0x0, 0x20008024}, 0x0) [ 1065.183813] nbd: must specify a device to reconfigure 12:34:20 executing program 0: ioctl$SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE(0xffffffffffffffff, 0x80045530, &(0x7f0000000040)=""/131) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)=ANY=[@ANYBLOB="0bfdff00", @ANYRES16=0x0, @ANYBLOB="0000000000000000000003000000"], 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000100), r1) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) ioctl$SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS(0xffffffffffffffff, 0xc0045516, &(0x7f0000000000)=0x200) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) [ 1065.221722] nbd: must specify a device to reconfigure 12:34:20 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r1, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:20 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)=ANY=[@ANYRESOCT=r1, @ANYRES16=r0, @ANYBLOB="0100000037000066e7ebcd1ed7f87900000e7b000000e3c058a0"], 0x20}}, 0x90) 12:34:20 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) [ 1065.250980] nbd: must specify a device to reconfigure 12:34:20 executing program 5: r0 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) r1 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000200), r0) sendmsg$L2TP_CMD_SESSION_GET(r0, &(0x7f00000002c0)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x1c, r1, 0x20, 0x70bd2c, 0x25dfdbfb, {}, [@L2TP_ATTR_PW_TYPE={0x6, 0x1, 0x8}]}, 0x1c}, 0x1, 0x0, 0x0, 0x20000811}, 0x4000040) ioctl$SNDRV_CTL_IOCTL_ELEM_REPLACE(r0, 0xc1105518, &(0x7f0000000040)={{0xa, 0x2, 0x1, 0x81, '\x00', 0x8}, 0x2, 0x104, 0x28, 0xffffffffffffffff, 0x2, 0x4, 'syz1\x00', &(0x7f0000000000)=['nbd\x00', 'nbd\x00'], 0x8, '\x00', [0x0, 0x7, 0x1, 0x2d]}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) r5 = openat$urandom(0xffffffffffffff9c, &(0x7f0000000300), 0x10500, 0x0) ioctl$RNDZAPENTCNT(r5, 0x5204, &(0x7f0000000340)=0x101) syz_open_dev$sndmidi(&(0x7f0000000180), 0x6, 0x408200) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r4, @ANYBLOB="0100000002000000"], 0x14}}, 0x0) 12:34:20 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r1, 0x1}, 0x14}}, 0x0) (async) getpid() [ 1065.312364] nbd: must specify a device to reconfigure 12:34:20 executing program 0: ioctl$SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE(0xffffffffffffffff, 0x80045530, &(0x7f0000000040)=""/131) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)=ANY=[@ANYBLOB="0bfdff00", @ANYRES16=0x0, @ANYBLOB="0000000000000000000003000000"], 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000100), r1) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) (async) ioctl$SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS(0xffffffffffffffff, 0xc0045516, &(0x7f0000000000)=0x200) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 12:34:20 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r1, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:20 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)=ANY=[@ANYRESOCT=r1, @ANYRES16=r0, @ANYBLOB="0100000037000066e7ebcd1ed7f87900000e7b000000e3c058a0"], 0x20}}, 0x90) 12:34:20 executing program 5: r0 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) r1 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000200), r0) sendmsg$L2TP_CMD_SESSION_GET(r0, &(0x7f00000002c0)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x1c, r1, 0x20, 0x70bd2c, 0x25dfdbfb, {}, [@L2TP_ATTR_PW_TYPE={0x6, 0x1, 0x8}]}, 0x1c}, 0x1, 0x0, 0x0, 0x20000811}, 0x4000040) ioctl$SNDRV_CTL_IOCTL_ELEM_REPLACE(r0, 0xc1105518, &(0x7f0000000040)={{0xa, 0x2, 0x1, 0x81, '\x00', 0x8}, 0x2, 0x104, 0x28, 0xffffffffffffffff, 0x2, 0x4, 'syz1\x00', &(0x7f0000000000)=['nbd\x00', 'nbd\x00'], 0x8, '\x00', [0x0, 0x7, 0x1, 0x2d]}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) r5 = openat$urandom(0xffffffffffffff9c, &(0x7f0000000300), 0x10500, 0x0) ioctl$RNDZAPENTCNT(r5, 0x5204, &(0x7f0000000340)=0x101) syz_open_dev$sndmidi(&(0x7f0000000180), 0x6, 0x408200) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r4, @ANYBLOB="0100000002000000"], 0x14}}, 0x0) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) (async) syz_genetlink_get_family_id$l2tp(&(0x7f0000000200), r0) (async) sendmsg$L2TP_CMD_SESSION_GET(r0, &(0x7f00000002c0)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x1c, r1, 0x20, 0x70bd2c, 0x25dfdbfb, {}, [@L2TP_ATTR_PW_TYPE={0x6, 0x1, 0x8}]}, 0x1c}, 0x1, 0x0, 0x0, 0x20000811}, 0x4000040) (async) ioctl$SNDRV_CTL_IOCTL_ELEM_REPLACE(r0, 0xc1105518, &(0x7f0000000040)={{0xa, 0x2, 0x1, 0x81, '\x00', 0x8}, 0x2, 0x104, 0x28, 0xffffffffffffffff, 0x2, 0x4, 'syz1\x00', &(0x7f0000000000)=['nbd\x00', 'nbd\x00'], 0x8, '\x00', [0x0, 0x7, 0x1, 0x2d]}) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) (async) openat$urandom(0xffffffffffffff9c, &(0x7f0000000300), 0x10500, 0x0) (async) ioctl$RNDZAPENTCNT(r5, 0x5204, &(0x7f0000000340)=0x101) (async) syz_open_dev$sndmidi(&(0x7f0000000180), 0x6, 0x408200) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r4, @ANYBLOB="0100000002000000"], 0x14}}, 0x0) (async) 12:34:20 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NET_DM_CMD_STOP(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x4, 0x70bd25, 0x25dfdbfe, {}, ["", "", ""]}, 0x14}}, 0x8800) [ 1065.385170] nbd: must specify a device to reconfigure 12:34:20 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x52}}, 0x2800c090) 12:34:20 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r1, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) [ 1065.449733] nbd: must specify a device to reconfigure 12:34:20 executing program 0: ioctl$SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE(0xffffffffffffffff, 0x80045530, &(0x7f0000000040)=""/131) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)=ANY=[@ANYBLOB="0bfdff00", @ANYRES16=0x0, @ANYBLOB="0000000000000000000003000000"], 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000100), r1) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x14}}, 0x0) (async) ioctl$SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS(0xffffffffffffffff, 0xc0045516, &(0x7f0000000000)=0x200) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 12:34:20 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)=ANY=[@ANYRESOCT=r1, @ANYRES16=r0, @ANYBLOB="0100000037000066e7ebcd1ed7f87900000e7b000000e3c058a0"], 0x20}}, 0x90) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)=ANY=[@ANYRESOCT=r1, @ANYRES16=r0, @ANYBLOB="0100000037000066e7ebcd1ed7f87900000e7b000000e3c058a0"], 0x20}}, 0x90) (async) 12:34:20 executing program 5: r0 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) (async) r1 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000200), r0) sendmsg$L2TP_CMD_SESSION_GET(r0, &(0x7f00000002c0)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x1c, r1, 0x20, 0x70bd2c, 0x25dfdbfb, {}, [@L2TP_ATTR_PW_TYPE={0x6, 0x1, 0x8}]}, 0x1c}, 0x1, 0x0, 0x0, 0x20000811}, 0x4000040) (async, rerun: 64) ioctl$SNDRV_CTL_IOCTL_ELEM_REPLACE(r0, 0xc1105518, &(0x7f0000000040)={{0xa, 0x2, 0x1, 0x81, '\x00', 0x8}, 0x2, 0x104, 0x28, 0xffffffffffffffff, 0x2, 0x4, 'syz1\x00', &(0x7f0000000000)=['nbd\x00', 'nbd\x00'], 0x8, '\x00', [0x0, 0x7, 0x1, 0x2d]}) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) r5 = openat$urandom(0xffffffffffffff9c, &(0x7f0000000300), 0x10500, 0x0) ioctl$RNDZAPENTCNT(r5, 0x5204, &(0x7f0000000340)=0x101) syz_open_dev$sndmidi(&(0x7f0000000180), 0x6, 0x408200) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r4, @ANYBLOB="0100000002000000"], 0x14}}, 0x0) 12:34:20 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x52}}, 0x2800c090) [ 1065.514801] nbd: must specify a device to reconfigure 12:34:20 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (async) sendmsg$NET_DM_CMD_STOP(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x4, 0x70bd25, 0x25dfdbfe, {}, ["", "", ""]}, 0x14}}, 0x8800) 12:34:20 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r1, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:20 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), 0xffffffffffffffff) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000440), r4) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000500)={&(0x7f0000000400), 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x28, r5, 0x0, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}]}, 0x28}, 0x1, 0x0, 0x0, 0x48000}, 0x80) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff}) r8 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r8, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x48, r6, 0x200, 0x7ff, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8, 0x1, r8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x24}]}, 0x48}, 0x1, 0x0, 0x0, 0x24000004}, 0x4000000) ioctl$RNDADDTOENTCNT(r8, 0x40045201, &(0x7f0000000380)=0x101) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000340)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r6, @ANYBLOB="00032abd7000fbdbdf25020000000c0005002801000000000000"], 0x20}, 0x1, 0x0, 0x0, 0x40880}, 0x90) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x28, 0x0, 0x10, 0x70bd2c, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x40}]}, 0x28}, 0x1, 0x0, 0x0, 0x20004000}, 0x4) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r9, 0x1}, 0x14}}, 0x0) [ 1065.582300] nbd: must specify a device to reconfigure 12:34:21 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000100), r0) sendmsg$NET_DM_CMD_START(r1, &(0x7f00000001c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x108000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x14, r2, 0x32c, 0x70bd2b, 0x25dfdbfc, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x10}, 0x20000894) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) syz_genetlink_get_family_id$net_dm(&(0x7f0000000240), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0xfffffffffffffede, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r4, @ANYBLOB="0100000000009700000013000000737900000000000000000000a8380ea48f49255c417e59fb804dae2b074efd40da6be55b2f3af955dcc02b229dbdfc0952f12d239374cfeb861e083b1e20d8c4bfc906ecbaa11cb99211231d4aa69ddd7fc0dd2db5752a3e1cec642cc2843ca1033c0ade43922af8b7d2ff4edcf8a2905b98ce5f119702b6f4deea7a79baef8690d4bbad8ffeffe7d454196d668900"/172], 0x20}}, 0x90) 12:34:21 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x52}}, 0x2800c090) 12:34:21 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r1, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:21 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) inotify_init1(0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000680)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r2, @ANYRESHEX=r2], 0x14}, 0x1, 0x0, 0x0, 0x24000801}, 0x4) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, r2, 0x200, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}]}, 0x20}, 0x1, 0x0, 0x0, 0x14010}, 0x2000c840) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0x5e, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="000429bd7000fbdbdf25010000000c000300f980000000000000"], 0x20}}, 0x4040001) 12:34:21 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NET_DM_CMD_STOP(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x4, 0x70bd25, 0x25dfdbfe, {}, ["", "", ""]}, 0x14}}, 0x8800) [ 1065.663882] nbd: must specify a device to reconfigure 12:34:21 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x52}}, 0x2800c090) [ 1065.715030] block nbd0: not configured, cannot reconfigure [ 1065.739790] nbd: must specify a device to reconfigure 12:34:21 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), 0xffffffffffffffff) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000440), r4) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000500)={&(0x7f0000000400), 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x28, r5, 0x0, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}]}, 0x28}, 0x1, 0x0, 0x0, 0x48000}, 0x80) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff}) r8 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r8, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x48, r6, 0x200, 0x7ff, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8, 0x1, r8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x24}]}, 0x48}, 0x1, 0x0, 0x0, 0x24000004}, 0x4000000) ioctl$RNDADDTOENTCNT(r8, 0x40045201, &(0x7f0000000380)=0x101) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000340)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r6, @ANYBLOB="00032abd7000fbdbdf25020000000c0005002801000000000000"], 0x20}, 0x1, 0x0, 0x0, 0x40880}, 0x90) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x28, 0x0, 0x10, 0x70bd2c, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x40}]}, 0x28}, 0x1, 0x0, 0x0, 0x20004000}, 0x4) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r9, 0x1}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), 0xffffffffffffffff) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000440), r4) (async) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000500)={&(0x7f0000000400), 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x28, r5, 0x0, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}]}, 0x28}, 0x1, 0x0, 0x0, 0x48000}, 0x80) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r8, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x48, r6, 0x200, 0x7ff, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8, 0x1, r8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x24}]}, 0x48}, 0x1, 0x0, 0x0, 0x24000004}, 0x4000000) (async) ioctl$RNDADDTOENTCNT(r8, 0x40045201, &(0x7f0000000380)=0x101) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000340)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r6, @ANYBLOB="00032abd7000fbdbdf25020000000c0005002801000000000000"], 0x20}, 0x1, 0x0, 0x0, 0x40880}, 0x90) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x28, 0x0, 0x10, 0x70bd2c, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x40}]}, 0x28}, 0x1, 0x0, 0x0, 0x20004000}, 0x4) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r9, 0x1}, 0x14}}, 0x0) (async) 12:34:21 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000100), r0) sendmsg$NET_DM_CMD_START(r1, &(0x7f00000001c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x108000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x14, r2, 0x32c, 0x70bd2b, 0x25dfdbfc, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x10}, 0x20000894) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000240), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0xfffffffffffffede, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r4, @ANYBLOB="0100000000009700000013000000737900000000000000000000a8380ea48f49255c417e59fb804dae2b074efd40da6be55b2f3af955dcc02b229dbdfc0952f12d239374cfeb861e083b1e20d8c4bfc906ecbaa11cb99211231d4aa69ddd7fc0dd2db5752a3e1cec642cc2843ca1033c0ade43922af8b7d2ff4edcf8a2905b98ce5f119702b6f4deea7a79baef8690d4bbad8ffeffe7d454196d668900"/172], 0x20}}, 0x90) 12:34:21 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r1, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:21 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) inotify_init1(0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000680)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r2, @ANYRESHEX=r2], 0x14}, 0x1, 0x0, 0x0, 0x24000801}, 0x4) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, r2, 0x200, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}]}, 0x20}, 0x1, 0x0, 0x0, 0x14010}, 0x2000c840) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0x5e, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) (async, rerun: 32) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="000429bd7000fbdbdf25010000000c000300f980000000000000"], 0x20}}, 0x4040001) (rerun: 32) [ 1065.763115] nbd: must specify a device to reconfigure 12:34:21 executing program 2: openat$mixer(0xffffffffffffff9c, &(0x7f0000000080), 0x40000, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="016d4ca13f4ea820f6c84c000000000040c809ca0fc54bb29dae32604b4f000003000000"], 0x14}}, 0x40) 12:34:21 executing program 4: sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x52}}, 0x2800c090) 12:34:21 executing program 4: sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x52}}, 0x2800c090) 12:34:21 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:21 executing program 2: openat$mixer(0xffffffffffffff9c, &(0x7f0000000080), 0x40000, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="016d4ca13f4ea820f6c84c000000000040c809ca0fc54bb29dae32604b4f000003000000"], 0x14}}, 0x40) openat$mixer(0xffffffffffffff9c, &(0x7f0000000080), 0x40000, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="016d4ca13f4ea820f6c84c000000000040c809ca0fc54bb29dae32604b4f000003000000"], 0x14}}, 0x40) (async) [ 1065.868364] block nbd0: not configured, cannot reconfigure 12:34:21 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000100), r0) sendmsg$NET_DM_CMD_START(r1, &(0x7f00000001c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x108000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x14, r2, 0x32c, 0x70bd2b, 0x25dfdbfc, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x10}, 0x20000894) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) syz_genetlink_get_family_id$net_dm(&(0x7f0000000240), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0xfffffffffffffede, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r4, @ANYBLOB="0100000000009700000013000000737900000000000000000000a8380ea48f49255c417e59fb804dae2b074efd40da6be55b2f3af955dcc02b229dbdfc0952f12d239374cfeb861e083b1e20d8c4bfc906ecbaa11cb99211231d4aa69ddd7fc0dd2db5752a3e1cec642cc2843ca1033c0ade43922af8b7d2ff4edcf8a2905b98ce5f119702b6f4deea7a79baef8690d4bbad8ffeffe7d454196d668900"/172], 0x20}}, 0x90) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000100), r0) (async) sendmsg$NET_DM_CMD_START(r1, &(0x7f00000001c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x108000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x14, r2, 0x32c, 0x70bd2b, 0x25dfdbfc, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x10}, 0x20000894) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r5) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000240), r3) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0xfffffffffffffede, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r4, @ANYBLOB="0100000000009700000013000000737900000000000000000000a8380ea48f49255c417e59fb804dae2b074efd40da6be55b2f3af955dcc02b229dbdfc0952f12d239374cfeb861e083b1e20d8c4bfc906ecbaa11cb99211231d4aa69ddd7fc0dd2db5752a3e1cec642cc2843ca1033c0ade43922af8b7d2ff4edcf8a2905b98ce5f119702b6f4deea7a79baef8690d4bbad8ffeffe7d454196d668900"/172], 0x20}}, 0x90) (async) 12:34:21 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) inotify_init1(0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000680)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r2, @ANYRESHEX=r2], 0x14}, 0x1, 0x0, 0x0, 0x24000801}, 0x4) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, r2, 0x200, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}]}, 0x20}, 0x1, 0x0, 0x0, 0x14010}, 0x2000c840) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0x5e, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="000429bd7000fbdbdf25010000000c000300f980000000000000"], 0x20}}, 0x4040001) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) inotify_init1(0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000680)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r2, @ANYRESHEX=r2], 0x14}, 0x1, 0x0, 0x0, 0x24000801}, 0x4) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, r2, 0x200, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}]}, 0x20}, 0x1, 0x0, 0x0, 0x14010}, 0x2000c840) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0x5e, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) (async) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="000429bd7000fbdbdf25010000000c000300f980000000000000"], 0x20}}, 0x4040001) (async) [ 1065.915730] nbd: must specify a device to reconfigure 12:34:21 executing program 4: sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x52}}, 0x2800c090) 12:34:21 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), 0xffffffffffffffff) (async, rerun: 32) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000440), r4) (rerun: 32) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000500)={&(0x7f0000000400), 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x28, r5, 0x0, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}]}, 0x28}, 0x1, 0x0, 0x0, 0x48000}, 0x80) (async) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff}) r8 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r8, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x48, r6, 0x200, 0x7ff, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8, 0x1, r8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x24}]}, 0x48}, 0x1, 0x0, 0x0, 0x24000004}, 0x4000000) ioctl$RNDADDTOENTCNT(r8, 0x40045201, &(0x7f0000000380)=0x101) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000340)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r6, @ANYBLOB="00032abd7000fbdbdf25020000000c0005002801000000000000"], 0x20}, 0x1, 0x0, 0x0, 0x40880}, 0x90) (async) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x28, 0x0, 0x10, 0x70bd2c, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x40}]}, 0x28}, 0x1, 0x0, 0x0, 0x20004000}, 0x4) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r9, 0x1}, 0x14}}, 0x0) 12:34:21 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:21 executing program 2: openat$mixer(0xffffffffffffff9c, &(0x7f0000000080), 0x40000, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="016d4ca13f4ea820f6c84c000000000040c809ca0fc54bb29dae32604b4f000003000000"], 0x14}}, 0x40) openat$mixer(0xffffffffffffff9c, &(0x7f0000000080), 0x40000, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="016d4ca13f4ea820f6c84c000000000040c809ca0fc54bb29dae32604b4f000003000000"], 0x14}}, 0x40) (async) 12:34:21 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) syz_open_dev$audion(&(0x7f0000000000), 0x3, 0x1) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000080)={0x2c, r1, 0x800, 0x40000000, 0x10000000, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x200}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}]}, 0x2c}}, 0x0) 12:34:21 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000100)={0x14, 0x0, 0x200, 0x70bd28, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x4008000}, 0x20040814) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:21 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x52}}, 0x2800c090) 12:34:21 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:21 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) syz_open_dev$audion(&(0x7f0000000000), 0x3, 0x1) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000080)={0x2c, r1, 0x800, 0x40000000, 0x10000000, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x200}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}]}, 0x2c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) (async) syz_open_dev$audion(&(0x7f0000000000), 0x3, 0x1) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000080)={0x2c, r1, 0x800, 0x40000000, 0x10000000, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x200}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}]}, 0x2c}}, 0x0) (async) [ 1066.098777] block nbd0: not configured, cannot reconfigure 12:34:21 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000040)={0x28, r1, 0x1, 0x70bd2d, 0x8000, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}]}, 0x28}, 0x1, 0x0, 0x0, 0x20000044}, 0x40080) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) sendmsg$NET_DM_CMD_START(r3, &(0x7f0000000140)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x14, 0x0, 0x300, 0x70bd2c, 0x25dfdbfb, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40000}, 0x2000) [ 1066.173048] nbd: must specify a device to reconfigure 12:34:21 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f00000000c0), r3) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)={0x14, r2, 0x1}, 0x14}, 0x1, 0x0, 0x0, 0x48044}, 0x0) 12:34:21 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x52}}, 0x2800c090) 12:34:21 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000100)={0x14, 0x0, 0x200, 0x70bd28, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x4008000}, 0x20040814) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:21 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) syz_open_dev$audion(&(0x7f0000000000), 0x3, 0x1) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000080)={0x2c, r1, 0x800, 0x40000000, 0x10000000, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x200}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}]}, 0x2c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) (async) syz_open_dev$audion(&(0x7f0000000000), 0x3, 0x1) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000080)={0x2c, r1, 0x800, 0x40000000, 0x10000000, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x200}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}]}, 0x2c}}, 0x0) (async) 12:34:21 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r1, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) [ 1066.264940] block nbd2: not configured, cannot reconfigure 12:34:21 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000040)={0x28, r1, 0x1, 0x70bd2d, 0x8000, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}]}, 0x28}, 0x1, 0x0, 0x0, 0x20000044}, 0x40080) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) sendmsg$NET_DM_CMD_START(r3, &(0x7f0000000140)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x14, 0x0, 0x300, 0x70bd2c, 0x25dfdbfb, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40000}, 0x2000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000040)={0x28, r1, 0x1, 0x70bd2d, 0x8000, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}]}, 0x28}, 0x1, 0x0, 0x0, 0x20000044}, 0x40080) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async) sendmsg$NET_DM_CMD_START(r3, &(0x7f0000000140)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x14, 0x0, 0x300, 0x70bd2c, 0x25dfdbfb, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40000}, 0x2000) (async) 12:34:21 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f00000000c0), r3) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)={0x14, r2, 0x1}, 0x14}, 0x1, 0x0, 0x0, 0x48044}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$net_dm(&(0x7f00000000c0), r3) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)={0x14, r2, 0x1}, 0x14}, 0x1, 0x0, 0x0, 0x48044}, 0x0) (async) [ 1066.313669] nbd: must specify a device to reconfigure 12:34:21 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x52}}, 0x2800c090) 12:34:21 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r1, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:21 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000100)={0x14, 0x0, 0x200, 0x70bd28, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x4008000}, 0x20040814) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) 12:34:21 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) sendmsg$NET_DM_CMD_STOP(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x10, 0x0, 0x25dfdbfc, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x80}, 0x4090) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r2 = openat$dsp(0xffffffffffffff9c, &(0x7f0000000180), 0x280ec2, 0x0) ioctl$SOUND_MIXER_WRITE_RECSRC(r2, 0xc0044dff, &(0x7f0000000100)=0x800ffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) 12:34:21 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x91) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x1c, r2, 0x200, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x800) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) 12:34:21 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, 0x0, 0x2800c090) [ 1066.405786] block nbd2: not configured, cannot reconfigure [ 1066.444999] block nbd2: not configured, cannot reconfigure 12:34:21 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000040)={0x28, r1, 0x1, 0x70bd2d, 0x8000, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}]}, 0x28}, 0x1, 0x0, 0x0, 0x20000044}, 0x40080) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async) sendmsg$NET_DM_CMD_START(r3, &(0x7f0000000140)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x14, 0x0, 0x300, 0x70bd2c, 0x25dfdbfb, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40000}, 0x2000) 12:34:21 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r1, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:21 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) (async) sendmsg$NET_DM_CMD_STOP(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x10, 0x0, 0x25dfdbfc, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x80}, 0x4090) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r2 = openat$dsp(0xffffffffffffff9c, &(0x7f0000000180), 0x280ec2, 0x0) ioctl$SOUND_MIXER_WRITE_RECSRC(r2, 0xc0044dff, &(0x7f0000000100)=0x800ffff) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) [ 1066.475072] nbd: must specify a device to reconfigure [ 1066.485437] nbd: must specify a device to reconfigure 12:34:21 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f00000000c0), r3) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)={0x14, r2, 0x1}, 0x14}, 0x1, 0x0, 0x0, 0x48044}, 0x0) 12:34:21 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, 0x0, 0x2800c090) 12:34:21 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x91) (async, rerun: 64) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x1c, r2, 0x200, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x800) (async, rerun: 64) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) 12:34:21 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r1, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:21 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r1, 0x1}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) 12:34:22 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, 0x0, 0x2800c090) 12:34:22 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r1) (async) sendmsg$NET_DM_CMD_STOP(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x10, 0x0, 0x25dfdbfc, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x80}, 0x4090) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) r2 = openat$dsp(0xffffffffffffff9c, &(0x7f0000000180), 0x280ec2, 0x0) ioctl$SOUND_MIXER_WRITE_RECSRC(r2, 0xc0044dff, &(0x7f0000000100)=0x800ffff) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) 12:34:22 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x91) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x1c, r2, 0x200, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x800) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) 12:34:22 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x2c, r3, 0x4, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x101}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040000}, 0x40c0) ioctl$PIO_UNISCRNMAP(r4, 0x4b6a, &(0x7f0000000240)="2ad0d4da6f197507a3c58fb848d9ea8cb3c1bb977134ed8664715b8b92d8f5c9f3d1b4d201f253bed198073d1a4b927bda497e8f34e4a2baac770de56598bdb4e310328f4fe92dc96385a0fe900d629cb59ec1e66397c4a16f5045c897d669457d8022d2f654fad41392593461f8811178c6361d5cf31a133a4c500cbeb9ec8b5157d941585b41eb5f05f9d41ed81c1bcfb07c440decc87934ae2c58dd59c5f4ae9e9dcd063fe8d89555ed018723017b8f97b51260f6f4aea41af1a4f687e09a967131e41e14ac2d050b814e2524a41e39c1c52ad07c217f44c0baa883") socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) [ 1066.622992] nbd: must specify a device to reconfigure [ 1066.642214] nbd: must specify a device to reconfigure 12:34:22 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, 0x0}, 0x2800c090) 12:34:22 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r1, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:22 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, 0x0}, 0x2800c090) [ 1066.757059] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1066.793393] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. 12:34:22 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, 0x0}, 0x2800c090) [ 1066.807028] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1066.834498] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1066.845582] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. 12:34:22 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={0x0}}, 0x2800c090) 12:34:22 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) read$watch_queue(0xffffffffffffffff, &(0x7f0000000040)=""/29, 0x1d) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r2, 0x20, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}]}, 0x20}, 0x1, 0x0, 0x0, 0x5}, 0x30000081) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1, 0x400000}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000200), r4) sendmsg$NET_DM_CMD_STOP(r3, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x14, r5, 0x20, 0x70bd2b, 0x25dfdbfb, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4040045}, 0x40008d0) 12:34:22 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000001b00030000000c0008000000000000000000"], 0x20}}, 0x90) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r7) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000080)={&(0x7f0000000140)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r6, @ANYBLOB="6096be9174048a17df09000000000000000c14c4037505681904eb73ac4d3285b2ce2d915e16727a318643bdf6de4d08718f20b2fc6d8d62b8234e410d2d0018641afe3915bcd1bde584784f893caaf35f2f5d557a5c6757e590582d8e750f64c40004b987f993a4fbf617108d9f1764f23b3a1f0cf8206c4f917a7c2387d335373c6e40364a3fb2586f8c49bc972bf0fe41a2aadce54398b2b6055ca9ec8d92051903c1f7239bedfe31cc4c38de697909"], 0x20}, 0x1, 0x0, 0x0, 0x24004040}, 0x0) 12:34:22 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r1, 0x1}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r1, 0x1}, 0x14}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) (async) 12:34:22 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r1, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:22 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={0x0}}, 0x2800c090) 12:34:22 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x2c, r3, 0x4, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x101}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040000}, 0x40c0) ioctl$PIO_UNISCRNMAP(r4, 0x4b6a, &(0x7f0000000240)="2ad0d4da6f197507a3c58fb848d9ea8cb3c1bb977134ed8664715b8b92d8f5c9f3d1b4d201f253bed198073d1a4b927bda497e8f34e4a2baac770de56598bdb4e310328f4fe92dc96385a0fe900d629cb59ec1e66397c4a16f5045c897d669457d8022d2f654fad41392593461f8811178c6361d5cf31a133a4c500cbeb9ec8b5157d941585b41eb5f05f9d41ed81c1bcfb07c440decc87934ae2c58dd59c5f4ae9e9dcd063fe8d89555ed018723017b8f97b51260f6f4aea41af1a4f687e09a967131e41e14ac2d050b814e2524a41e39c1c52ad07c217f44c0baa883") (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) [ 1067.018973] nbd: must specify a device to reconfigure 12:34:22 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={0x0}}, 0x2800c090) 12:34:22 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) read$watch_queue(0xffffffffffffffff, &(0x7f0000000040)=""/29, 0x1d) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r2, 0x20, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}]}, 0x20}, 0x1, 0x0, 0x0, 0x5}, 0x30000081) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async, rerun: 32) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r3) (rerun: 32) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1, 0x400000}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000200), r4) sendmsg$NET_DM_CMD_STOP(r3, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x14, r5, 0x20, 0x70bd2b, 0x25dfdbfb, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4040045}, 0x40008d0) 12:34:22 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async, rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async, rerun: 64) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (rerun: 64) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) (async) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) (async, rerun: 64) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x2c, r3, 0x4, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x101}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040000}, 0x40c0) ioctl$PIO_UNISCRNMAP(r4, 0x4b6a, &(0x7f0000000240)="2ad0d4da6f197507a3c58fb848d9ea8cb3c1bb977134ed8664715b8b92d8f5c9f3d1b4d201f253bed198073d1a4b927bda497e8f34e4a2baac770de56598bdb4e310328f4fe92dc96385a0fe900d629cb59ec1e66397c4a16f5045c897d669457d8022d2f654fad41392593461f8811178c6361d5cf31a133a4c500cbeb9ec8b5157d941585b41eb5f05f9d41ed81c1bcfb07c440decc87934ae2c58dd59c5f4ae9e9dcd063fe8d89555ed018723017b8f97b51260f6f4aea41af1a4f687e09a967131e41e14ac2d050b814e2524a41e39c1c52ad07c217f44c0baa883") (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:22 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, 0x0, 0x90) 12:34:22 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r1, 0x1}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r1, 0x1}, 0x14}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) (async) 12:34:22 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14}, 0x52}}, 0x2800c090) [ 1067.105942] nbd: must specify a device to reconfigure [ 1067.124077] block nbd1: not configured, cannot reconfigure 12:34:22 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000001b00030000000c0008000000000000000000"], 0x20}}, 0x90) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) (async) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r7) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000080)={&(0x7f0000000140)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r6, @ANYBLOB="6096be9174048a17df09000000000000000c14c4037505681904eb73ac4d3285b2ce2d915e16727a318643bdf6de4d08718f20b2fc6d8d62b8234e410d2d0018641afe3915bcd1bde584784f893caaf35f2f5d557a5c6757e590582d8e750f64c40004b987f993a4fbf617108d9f1764f23b3a1f0cf8206c4f917a7c2387d335373c6e40364a3fb2586f8c49bc972bf0fe41a2aadce54398b2b6055ca9ec8d92051903c1f7239bedfe31cc4c38de697909"], 0x20}, 0x1, 0x0, 0x0, 0x24004040}, 0x0) [ 1067.183568] nbd: must specify a device to reconfigure 12:34:22 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) read$watch_queue(0xffffffffffffffff, &(0x7f0000000040)=""/29, 0x1d) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r2, 0x20, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}]}, 0x20}, 0x1, 0x0, 0x0, 0x5}, 0x30000081) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1, 0x400000}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000200), r4) sendmsg$NET_DM_CMD_STOP(r3, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x14, r5, 0x20, 0x70bd2b, 0x25dfdbfb, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4040045}, 0x40008d0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) (async) read$watch_queue(0xffffffffffffffff, &(0x7f0000000040)=""/29, 0x1d) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r2, 0x20, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}]}, 0x20}, 0x1, 0x0, 0x0, 0x5}, 0x30000081) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r3) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1, 0x400000}, 0x14}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000200), r4) (async) sendmsg$NET_DM_CMD_STOP(r3, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x14, r5, 0x20, 0x70bd2b, 0x25dfdbfb, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4040045}, 0x40008d0) (async) 12:34:22 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, 0x0, 0x90) 12:34:22 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000280)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x1c, 0x0, 0x300, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4000000}, 0xd0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) pipe2$watch_queue(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) pipe2$watch_queue(&(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x50, r4, 0x210, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}]}]}, 0x50}, 0x1, 0x0, 0x0, 0x34044840}, 0x40) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r8) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r9, 0x1}, 0x14}}, 0x0) 12:34:22 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000001b00030000000c0008000000000000000000"], 0x20}}, 0x90) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) (async) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r7) (async) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async, rerun: 32) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000080)={&(0x7f0000000140)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r6, @ANYBLOB="6096be9174048a17df09000000000000000c14c4037505681904eb73ac4d3285b2ce2d915e16727a318643bdf6de4d08718f20b2fc6d8d62b8234e410d2d0018641afe3915bcd1bde584784f893caaf35f2f5d557a5c6757e590582d8e750f64c40004b987f993a4fbf617108d9f1764f23b3a1f0cf8206c4f917a7c2387d335373c6e40364a3fb2586f8c49bc972bf0fe41a2aadce54398b2b6055ca9ec8d92051903c1f7239bedfe31cc4c38de697909"], 0x20}, 0x1, 0x0, 0x0, 0x24004040}, 0x0) (rerun: 32) 12:34:22 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14}, 0x52}}, 0x0) 12:34:22 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000080), r1) sendmsg$NET_DM_CMD_START(r3, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x14, r4, 0x200, 0x70bd28, 0x25dfdbfc, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x840) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) ioctl$SNDRV_CTL_IOCTL_ELEM_REPLACE(0xffffffffffffffff, 0xc1105518, &(0x7f0000000180)={{0x1, 0x1, 0x4, 0x1}, 0x1, 0x200, 0xd, 0xffffffffffffffff, 0x2, 0x8, 'syz0\x00', &(0x7f0000000000)=['#$[]}\x00', '\x00'], 0x7, '\x00', [0x7, 0x401, 0x2, 0x4]}) [ 1067.359804] block nbd2: not configured, cannot reconfigure [ 1067.381548] nbd: must specify a device to reconfigure [ 1067.395869] nbd: must specify a device to reconfigure 12:34:22 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, 0x0, 0x90) 12:34:22 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000001b00030000000c0008000000000000000000"], 0x20}}, 0x90) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r5) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r7) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000080)={&(0x7f0000000140)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r6, @ANYBLOB="6096be9174048a17df09000000000000000c14c4037505681904eb73ac4d3285b2ce2d915e16727a318643bdf6de4d08718f20b2fc6d8d62b8234e410d2d0018641afe3915bcd1bde584784f893caaf35f2f5d557a5c6757e590582d8e750f64c40004b987f993a4fbf617108d9f1764f23b3a1f0cf8206c4f917a7c2387d335373c6e40364a3fb2586f8c49bc972bf0fe41a2aadce54398b2b6055ca9ec8d92051903c1f7239bedfe31cc4c38de697909"], 0x20}, 0x1, 0x0, 0x0, 0x24004040}, 0x0) [ 1067.414562] nbd: must specify a device to reconfigure 12:34:22 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000280)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x1c, 0x0, 0x300, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4000000}, 0xd0) (async, rerun: 64) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) (rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) pipe2$watch_queue(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) (async) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) pipe2$watch_queue(&(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x50, r4, 0x210, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}]}]}, 0x50}, 0x1, 0x0, 0x0, 0x34044840}, 0x40) (async) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r8) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r9, 0x1}, 0x14}}, 0x0) 12:34:22 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) read$watch_queue(0xffffffffffffffff, &(0x7f0000000040)=""/29, 0x1d) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r2, 0x20, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}]}, 0x20}, 0x1, 0x0, 0x0, 0x5}, 0x30000081) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r3) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1, 0x400000}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000200), r4) sendmsg$NET_DM_CMD_STOP(r3, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x14, r5, 0x20, 0x70bd2b, 0x25dfdbfb, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x4040045}, 0x40008d0) 12:34:22 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000080), r1) sendmsg$NET_DM_CMD_START(r3, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x14, r4, 0x200, 0x70bd28, 0x25dfdbfc, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x840) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) ioctl$SNDRV_CTL_IOCTL_ELEM_REPLACE(0xffffffffffffffff, 0xc1105518, &(0x7f0000000180)={{0x1, 0x1, 0x4, 0x1}, 0x1, 0x200, 0xd, 0xffffffffffffffff, 0x2, 0x8, 'syz0\x00', &(0x7f0000000000)=['#$[]}\x00', '\x00'], 0x7, '\x00', [0x7, 0x401, 0x2, 0x4]}) [ 1067.450383] nbd: must specify a device to reconfigure 12:34:22 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) r7 = syz_open_dev$audion(&(0x7f0000000080), 0x0, 0x100) pipe2$watch_queue(&(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000001c0)={&(0x7f0000000100)={0x8c, r5, 0x811, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x94}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}]}]}, 0x8c}, 0x1, 0x0, 0x0, 0x4000000}, 0x0) bpf$ITER_CREATE(0x21, &(0x7f0000000240)={r8}, 0x8) 12:34:22 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x8804}, 0x90) [ 1067.509981] nbd: must specify a device to reconfigure 12:34:22 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x2c, r3, 0x4, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x101}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040000}, 0x40c0) ioctl$PIO_UNISCRNMAP(r4, 0x4b6a, &(0x7f0000000240)="2ad0d4da6f197507a3c58fb848d9ea8cb3c1bb977134ed8664715b8b92d8f5c9f3d1b4d201f253bed198073d1a4b927bda497e8f34e4a2baac770de56598bdb4e310328f4fe92dc96385a0fe900d629cb59ec1e66397c4a16f5045c897d669457d8022d2f654fad41392593461f8811178c6361d5cf31a133a4c500cbeb9ec8b5157d941585b41eb5f05f9d41ed81c1bcfb07c440decc87934ae2c58dd59c5f4ae9e9dcd063fe8d89555ed018723017b8f97b51260f6f4aea41af1a4f687e09a967131e41e14ac2d050b814e2524a41e39c1c52ad07c217f44c0baa883") socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) [ 1067.547647] block nbd4: not configured, cannot reconfigure [ 1067.581491] nbd: must specify a device to reconfigure 12:34:22 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:23 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r1, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) [ 1067.599990] nbd: must specify a device to reconfigure 12:34:23 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000080), r1) sendmsg$NET_DM_CMD_START(r3, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x14, r4, 0x200, 0x70bd28, 0x25dfdbfc, {}, ["", "", "", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x840) (async, rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (rerun: 64) ioctl$SNDRV_CTL_IOCTL_ELEM_REPLACE(0xffffffffffffffff, 0xc1105518, &(0x7f0000000180)={{0x1, 0x1, 0x4, 0x1}, 0x1, 0x200, 0xd, 0xffffffffffffffff, 0x2, 0x8, 'syz0\x00', &(0x7f0000000000)=['#$[]}\x00', '\x00'], 0x7, '\x00', [0x7, 0x401, 0x2, 0x4]}) 12:34:23 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000280)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x1c, 0x0, 0x300, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4000000}, 0xd0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) pipe2$watch_queue(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r6, 0x0, 0x0) (async) pipe2$watch_queue(&(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x50, r4, 0x210, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}]}]}, 0x50}, 0x1, 0x0, 0x0, 0x34044840}, 0x40) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r8) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r9, 0x1}, 0x14}}, 0x0) 12:34:23 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) (async) r7 = syz_open_dev$audion(&(0x7f0000000080), 0x0, 0x100) (async, rerun: 64) pipe2$watch_queue(&(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) (rerun: 64) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000001c0)={&(0x7f0000000100)={0x8c, r5, 0x811, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x94}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}]}]}, 0x8c}, 0x1, 0x0, 0x0, 0x4000000}, 0x0) (async) bpf$ITER_CREATE(0x21, &(0x7f0000000240)={r8}, 0x8) [ 1067.637691] block nbd1: not configured, cannot reconfigure [ 1067.658686] nbd: must specify a device to reconfigure [ 1067.673181] nbd: must specify an index to disconnect 12:34:23 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x2c, r3, 0x4, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x101}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040000}, 0x40c0) ioctl$PIO_UNISCRNMAP(r4, 0x4b6a, &(0x7f0000000240)="2ad0d4da6f197507a3c58fb848d9ea8cb3c1bb977134ed8664715b8b92d8f5c9f3d1b4d201f253bed198073d1a4b927bda497e8f34e4a2baac770de56598bdb4e310328f4fe92dc96385a0fe900d629cb59ec1e66397c4a16f5045c897d669457d8022d2f654fad41392593461f8811178c6361d5cf31a133a4c500cbeb9ec8b5157d941585b41eb5f05f9d41ed81c1bcfb07c440decc87934ae2c58dd59c5f4ae9e9dcd063fe8d89555ed018723017b8f97b51260f6f4aea41af1a4f687e09a967131e41e14ac2d050b814e2524a41e39c1c52ad07c217f44c0baa883") socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:23 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r1, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:23 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x8804}, 0x90) [ 1067.759091] nbd: must specify a device to reconfigure [ 1067.779962] nbd: must specify a device to reconfigure [ 1067.785301] nbd: must specify a device to reconfigure 12:34:23 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r1, 0x1}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) 12:34:23 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) ioctl$KDGKBENT(r4, 0x4b46, &(0x7f0000000140)={0x6, 0x30, 0x9}) sendmsg$L2TP_CMD_SESSION_CREATE(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB='H\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="10070d317000fc000800000000800000100002000000020400000c000f000304000000000000000002000100040008000c001600070000f6ffffff00000000000000"], 0x48}, 0x1, 0x0, 0x0, 0x4}, 0x14) [ 1067.830162] nbd: must specify a device to reconfigure [ 1067.835400] block nbd2: not configured, cannot reconfigure [ 1067.844550] nbd: must specify a device to reconfigure [ 1067.857470] nbd: must specify a device to reconfigure [ 1067.865009] nbd: must specify a device to reconfigure 12:34:23 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={0x0}, 0x1, 0x0, 0x0, 0x8804}, 0x90) [ 1067.885136] nbd: must specify a device to reconfigure [ 1067.904579] nbd: must specify an index to disconnect [ 1067.910536] nbd: must specify a device to reconfigure [ 1067.928744] nbd: must specify a device to reconfigure 12:34:23 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}}, 0x90) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) (async) r7 = syz_open_dev$audion(&(0x7f0000000080), 0x0, 0x100) (async) pipe2$watch_queue(&(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000001c0)={&(0x7f0000000100)={0x8c, r5, 0x811, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x94}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}]}]}, 0x8c}, 0x1, 0x0, 0x0, 0x4000000}, 0x0) (async) bpf$ITER_CREATE(0x21, &(0x7f0000000240)={r8}, 0x8) [ 1067.945209] nbd: must specify a device to reconfigure [ 1067.970456] nbd: must specify a device to reconfigure 12:34:23 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:23 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={0x0}, 0x1, 0x0, 0x0, 0x8804}, 0x90) [ 1068.015213] nbd: must specify a device to reconfigure [ 1068.020973] nbd: must specify a device to reconfigure [ 1068.030973] nbd: must specify a device to reconfigure [ 1068.040615] nbd: must specify a device to reconfigure [ 1068.055237] nbd: must specify a device to reconfigure [ 1068.076042] block nbd1: not configured, cannot reconfigure [ 1068.082628] nbd: must specify an index to disconnect [ 1068.087959] nbd: must specify a device to reconfigure [ 1068.100805] nbd: must specify a device to reconfigure [ 1068.106097] nbd: must specify a device to reconfigure [ 1068.141619] nbd: must specify a device to reconfigure [ 1068.147161] nbd: must specify a device to reconfigure [ 1068.157034] nbd: must specify a device to reconfigure [ 1068.166788] nbd: must specify a device to reconfigure [ 1068.172544] nbd: must specify a device to reconfigure [ 1068.178097] nbd: must specify a device to reconfigure [ 1068.183764] nbd: must specify a device to reconfigure [ 1068.189126] nbd: must specify a device to reconfigure [ 1068.194892] nbd: must specify a device to reconfigure [ 1068.200453] nbd: must specify a device to reconfigure [ 1068.206509] nbd: must specify a device to reconfigure [ 1068.212083] nbd: must specify a device to reconfigure [ 1068.217384] nbd: must specify a device to reconfigure [ 1068.222965] nbd: must specify a device to reconfigure [ 1068.228220] nbd: must specify a device to reconfigure [ 1068.233596] nbd: must specify a device to reconfigure [ 1068.238830] nbd: must specify a device to reconfigure [ 1068.244169] nbd: must specify a device to reconfigure [ 1068.249415] nbd: must specify a device to reconfigure [ 1068.254705] nbd: must specify a device to reconfigure [ 1068.260023] nbd: must specify a device to reconfigure [ 1068.265351] nbd: must specify a device to reconfigure [ 1068.270653] nbd: must specify a device to reconfigure [ 1068.275882] nbd: must specify a device to reconfigure [ 1068.281342] nbd: must specify a device to reconfigure [ 1068.286570] nbd: must specify a device to reconfigure [ 1068.291869] nbd: must specify a device to reconfigure [ 1068.297121] nbd: must specify a device to reconfigure [ 1068.302442] nbd: must specify a device to reconfigure [ 1068.307694] nbd: must specify a device to reconfigure [ 1068.313006] nbd: must specify a device to reconfigure [ 1068.318254] nbd: must specify a device to reconfigure [ 1068.323554] nbd: must specify a device to reconfigure [ 1068.328834] nbd: must specify a device to reconfigure [ 1068.334238] nbd: must specify a device to reconfigure [ 1068.339468] nbd: must specify a device to reconfigure [ 1068.344791] nbd: must specify a device to reconfigure [ 1068.350105] nbd: must specify a device to reconfigure [ 1068.355387] nbd: must specify a device to reconfigure [ 1068.360717] nbd: must specify a device to reconfigure [ 1068.365947] nbd: must specify a device to reconfigure [ 1068.371255] nbd: must specify a device to reconfigure [ 1068.376562] nbd: must specify a device to reconfigure [ 1068.381918] nbd: must specify a device to reconfigure [ 1068.387198] nbd: must specify a device to reconfigure 12:34:23 executing program 0: openat$urandom(0xffffffffffffff9c, &(0x7f0000000000), 0x80, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:23 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (async) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) (async) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) (async) ioctl$KDGKBENT(r4, 0x4b46, &(0x7f0000000140)={0x6, 0x30, 0x9}) sendmsg$L2TP_CMD_SESSION_CREATE(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB='H\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="10070d317000fc000800000000800000100002000000020400000c000f000304000000000000000002000100040008000c001600070000f6ffffff00000000000000"], 0x48}, 0x1, 0x0, 0x0, 0x4}, 0x14) 12:34:23 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x2c, r3, 0x4, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x101}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040000}, 0x40c0) ioctl$PIO_UNISCRNMAP(r4, 0x4b6a, &(0x7f0000000240)="2ad0d4da6f197507a3c58fb848d9ea8cb3c1bb977134ed8664715b8b92d8f5c9f3d1b4d201f253bed198073d1a4b927bda497e8f34e4a2baac770de56598bdb4e310328f4fe92dc96385a0fe900d629cb59ec1e66397c4a16f5045c897d669457d8022d2f654fad41392593461f8811178c6361d5cf31a133a4c500cbeb9ec8b5157d941585b41eb5f05f9d41ed81c1bcfb07c440decc87934ae2c58dd59c5f4ae9e9dcd063fe8d89555ed018723017b8f97b51260f6f4aea41af1a4f687e09a967131e41e14ac2d050b814e2524a41e39c1c52ad07c217f44c0baa883") socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:23 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NET_DM_CMD_STOP(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x4, 0x70bd25, 0x25dfdbfe, {}, ["", "", ""]}, 0x14}}, 0x8800) 12:34:23 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r1, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:23 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={0x0}, 0x1, 0x0, 0x0, 0x8804}, 0x90) [ 1068.392522] nbd: must specify a device to reconfigure [ 1068.397764] nbd: must specify a device to reconfigure [ 1068.403188] nbd: must specify a device to reconfigure [ 1068.469225] nbd: must specify a device to reconfigure 12:34:23 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, 0x0, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:23 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) 12:34:23 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$net_dm(0x0, r1) sendmsg$NET_DM_CMD_START(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r2, 0x1, 0x70bd2d, 0x25dfdbff, {}, ["", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40042}, 0x0) [ 1068.494374] nbd: must specify a device to reconfigure 12:34:23 executing program 0: openat$urandom(0xffffffffffffff9c, &(0x7f0000000000), 0x80, 0x0) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) [ 1068.533572] nla_parse: 30 callbacks suppressed [ 1068.533579] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. 12:34:23 executing program 1: openat$urandom(0xffffffffffffff9c, &(0x7f0000000000), 0x80, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) [ 1068.577918] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 1068.609062] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 1068.649532] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 1068.663088] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 1068.683404] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 1068.694435] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. 12:34:24 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000002c0)={0xffffffffffffffff}) r4 = syz_open_dev$audion(&(0x7f0000000300), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000500)={0xffffffffffffffff, 0xffffffffffffffff}) r7 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r7, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000680)={&(0x7f0000000700)=ANY=[@ANYBLOB='X\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="00022db57000fbdbdf25020000000c000200fa9d0000000000002c00078008000100", @ANYRES32=r3, @ANYRES64=r7, @ANYRES32=r4, @ANYRES16, @ANYRES32=r5, @ANYBLOB="08000100", @ANYRES32, @ANYRES16, @ANYRES32, @ANYBLOB="0c0007800800442be36cb860e4890100", @ANYRESHEX, @ANYBLOB], 0x58}}, 0x4004095) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r10 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r9) sendmsg$NBD_CMD_RECONFIGURE(r10, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000780)=ANY=[@ANYBLOB="e21c38d02ffed9d28a613a4d4bdd97344072bfba1931b43ee954749d1364d22269ece3069544224e06f85d2e2056842011eda7b8b0ef78542c3d6783b4ace0ca4bc90e5349cbe7b94ddfbc04ad0bba3fbdedd99b0cb0874065e37c04703bb4837e4f097c5ed5c0c79dbee9cad8ae9814f6a5135ab9db8bdd22a74092d037c542ac11990f65472d87fcbbf947fe424c166b99286dd400", @ANYRES16=r11, @ANYBLOB="0000000000000000000003000000"], 0x14}, 0x1, 0x0, 0x0, 0x10}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r8) r12 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_STOP(r8, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r12, 0x0, 0x70bd29, 0x25dfdbfb, {}, [""]}, 0x14}, 0x1, 0x0, 0x0, 0x40044}, 0x810) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000380)=ANY=[@ANYBLOB="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", @ANYRES16=r2, @ANYBLOB="010000a8e47c8f4b0e29f55446000003000000d4c3eff580ad6efb9231a1c37e07d37a63e3070d86f11aef6603ed1897eedb6ade2d9fe4d056964cca1b4e8fc68c39af09cce9d4cba11761"], 0x14}}, 0x0) 12:34:24 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, 0x0, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:24 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (async, rerun: 64) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (rerun: 64) sendmsg$L2TP_CMD_SESSION_CREATE(r3, 0x0, 0x0) (async, rerun: 32) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (rerun: 32) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) (async, rerun: 32) ioctl$KDGKBENT(r4, 0x4b46, &(0x7f0000000140)={0x6, 0x30, 0x9}) (async, rerun: 32) sendmsg$L2TP_CMD_SESSION_CREATE(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB='H\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="10070d317000fc000800000000800000100002000000020400000c000f000304000000000000000002000100040008000c001600070000f6ffffff00000000000000"], 0x48}, 0x1, 0x0, 0x0, 0x4}, 0x14) 12:34:24 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x2c, r3, 0x4, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x101}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040000}, 0x40c0) ioctl$PIO_UNISCRNMAP(r4, 0x4b6a, &(0x7f0000000240)="2ad0d4da6f197507a3c58fb848d9ea8cb3c1bb977134ed8664715b8b92d8f5c9f3d1b4d201f253bed198073d1a4b927bda497e8f34e4a2baac770de56598bdb4e310328f4fe92dc96385a0fe900d629cb59ec1e66397c4a16f5045c897d669457d8022d2f654fad41392593461f8811178c6361d5cf31a133a4c500cbeb9ec8b5157d941585b41eb5f05f9d41ed81c1bcfb07c440decc87934ae2c58dd59c5f4ae9e9dcd063fe8d89555ed018723017b8f97b51260f6f4aea41af1a4f687e09a967131e41e14ac2d050b814e2524a41e39c1c52ad07c217f44c0baa883") sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) [ 1068.751254] nbd: must specify a device to reconfigure 12:34:24 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) 12:34:24 executing program 0: openat$urandom(0xffffffffffffff9c, &(0x7f0000000000), 0x80, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) openat$urandom(0xffffffffffffff9c, &(0x7f0000000000), 0x80, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (async) 12:34:24 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, 0x0, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:24 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000400)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x402}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x38, r1, 0x1, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x21}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffffa}]}, 0x38}, 0x1, 0x0, 0x0, 0x20000004}, 0x20040010) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) 12:34:24 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x1c, 0x0, 0x4, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x20000010}, 0xc000) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x7c, r3, 0x10, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8000000000000001}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x24040040}, 0x4040000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r5, 0x1}, 0x14}}, 0x0) 12:34:24 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, r1, 0x4, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8080}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r4) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000400)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x402}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x38, r1, 0x1, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x21}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffffa}]}, 0x38}, 0x1, 0x0, 0x0, 0x20000004}, 0x20040010) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r3, 0x1}, 0x52}}, 0x2800c090) [ 1069.028468] nbd: must specify a device to reconfigure [ 1069.041703] nbd: must specify a device to reconfigure [ 1069.059562] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 1069.095252] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 1069.126967] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. 12:34:24 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x2c, r3, 0x4, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x101}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040000}, 0x40c0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) [ 1069.191268] nbd: must specify a device to reconfigure 12:34:24 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x0, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:24 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x1c, 0x0, 0x4, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x20000010}, 0xc000) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x7c, r3, 0x10, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8000000000000001}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x24040040}, 0x4040000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r5, 0x1}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x1c, 0x0, 0x4, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x20000010}, 0xc000) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x7c, r3, 0x10, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8000000000000001}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x24040040}, 0x4040000) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r5, 0x1}, 0x14}}, 0x0) (async) 12:34:24 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="100028bd7000fddbdf25010000000c0004004000e8ffffffffff0b000200020000c2a532b3e2db8991ea4092cd0000000000"], 0x2c}}, 0x40004) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x28, r5, 0x200, 0x0, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x28}}, 0x0) 12:34:24 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x2c, r3, 0x4, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x101}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040000}, 0x40c0) ioctl$PIO_UNISCRNMAP(r4, 0x4b6a, &(0x7f0000000240)="2ad0d4da6f197507a3c58fb848d9ea8cb3c1bb977134ed8664715b8b92d8f5c9f3d1b4d201f253bed198073d1a4b927bda497e8f34e4a2baac770de56598bdb4e310328f4fe92dc96385a0fe900d629cb59ec1e66397c4a16f5045c897d669457d8022d2f654fad41392593461f8811178c6361d5cf31a133a4c500cbeb9ec8b5157d941585b41eb5f05f9d41ed81c1bcfb07c440decc87934ae2c58dd59c5f4ae9e9dcd063fe8d89555ed018723017b8f97b51260f6f4aea41af1a4f687e09a967131e41e14ac2d050b814e2524a41e39c1c52ad07c217f44c0baa883") sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:24 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01000000000000000000030000000600"/26], 0x20}}, 0x90) [ 1069.220389] nbd: must specify a device to reconfigure [ 1069.227511] nbd: must specify a device to reconfigure [ 1069.249768] nbd: must specify a device to reconfigure 12:34:24 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r6) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:24 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="100028bd7000fddbdf25010000000c0004004000e8ffffffffff0b000200020000c2a532b3e2db8991ea4092cd0000000000"], 0x2c}}, 0x40004) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x28, r5, 0x200, 0x0, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x28}}, 0x0) [ 1069.346959] block nbd2: not configured, cannot reconfigure [ 1069.368198] nbd: must specify a device to reconfigure 12:34:24 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x0, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:24 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x2c, r3, 0x4, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x101}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040000}, 0x40c0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) [ 1069.401860] nbd: must specify a device to reconfigure 12:34:24 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x1c, 0x0, 0x4, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x20000010}, 0xc000) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x7c, r3, 0x10, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8000000000000001}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x24040040}, 0x4040000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r5, 0x1}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x1c, 0x0, 0x4, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x20000010}, 0xc000) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x7c, r3, 0x10, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8000000000000001}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x24040040}, 0x4040000) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r5, 0x1}, 0x14}}, 0x0) (async) 12:34:24 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x2c, r3, 0x4, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x101}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040000}, 0x40c0) ioctl$PIO_UNISCRNMAP(r4, 0x4b6a, &(0x7f0000000240)="2ad0d4da6f197507a3c58fb848d9ea8cb3c1bb977134ed8664715b8b92d8f5c9f3d1b4d201f253bed198073d1a4b927bda497e8f34e4a2baac770de56598bdb4e310328f4fe92dc96385a0fe900d629cb59ec1e66397c4a16f5045c897d669457d8022d2f654fad41392593461f8811178c6361d5cf31a133a4c500cbeb9ec8b5157d941585b41eb5f05f9d41ed81c1bcfb07c440decc87934ae2c58dd59c5f4ae9e9dcd063fe8d89555ed018723017b8f97b51260f6f4aea41af1a4f687e09a967131e41e14ac2d050b814e2524a41e39c1c52ad07c217f44c0baa883") sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:24 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="100028bd7000fddbdf25010000000c0004004000e8ffffffffff0b000200020000c2a532b3e2db8991ea4092cd0000000000"], 0x2c}}, 0x40004) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x28, r5, 0x200, 0x0, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x28}}, 0x0) 12:34:24 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:24 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x0, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:24 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x2c, r3, 0x4, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x101}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040000}, 0x40c0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:25 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100400200006050000003000000"], 0x14}}, 0x0) r3 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r3, 0x8, 0x70bd2b, 0x25dfdbfb, {}, ["", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40804}, 0x0) [ 1069.577507] block nbd2: not configured, cannot reconfigure [ 1069.590458] nbd: must specify a device to reconfigure [ 1069.608469] nbd: must specify a device to reconfigure 12:34:25 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="db7cae729efca29815fcf67dd1ed402500", @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) 12:34:25 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="db7cae729efca29815fcf67dd1ed402500", @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) 12:34:25 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:25 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x2c, r3, 0x4, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x101}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040000}, 0x40c0) ioctl$PIO_UNISCRNMAP(r4, 0x4b6a, &(0x7f0000000240)="2ad0d4da6f197507a3c58fb848d9ea8cb3c1bb977134ed8664715b8b92d8f5c9f3d1b4d201f253bed198073d1a4b927bda497e8f34e4a2baac770de56598bdb4e310328f4fe92dc96385a0fe900d629cb59ec1e66397c4a16f5045c897d669457d8022d2f654fad41392593461f8811178c6361d5cf31a133a4c500cbeb9ec8b5157d941585b41eb5f05f9d41ed81c1bcfb07c440decc87934ae2c58dd59c5f4ae9e9dcd063fe8d89555ed018723017b8f97b51260f6f4aea41af1a4f687e09a967131e41e14ac2d050b814e2524a41e39c1c52ad07c217f44c0baa883") sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:25 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:25 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="db7cae729efca29815fcf67dd1ed402500", @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) [ 1069.762121] nbd: must specify a device to reconfigure 12:34:25 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, 0x0, 0x300, 0x3, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x307}]}, 0x20}, 0x1, 0x0, 0x0, 0x90}, 0x4040040) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:25 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:25 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100400200006050000003000000"], 0x14}}, 0x0) r3 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r3, 0x8, 0x70bd2b, 0x25dfdbfb, {}, ["", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40804}, 0x0) 12:34:25 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x2c, r3, 0x4, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x101}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040000}, 0x40c0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:25 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:25 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, 0x0, 0x300, 0x3, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x307}]}, 0x20}, 0x1, 0x0, 0x0, 0x90}, 0x4040040) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:25 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x2c, r3, 0x4, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x101}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040000}, 0x40c0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:25 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:25 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100400200006050000003000000"], 0x14}}, 0x0) r3 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r3, 0x8, 0x70bd2b, 0x25dfdbfb, {}, ["", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40804}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100400200006050000003000000"], 0x14}}, 0x0) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000040), r1) (async) sendmsg$NET_DM_CMD_STOP(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r3, 0x8, 0x70bd2b, 0x25dfdbfb, {}, ["", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40804}, 0x0) (async) [ 1069.994486] nbd: must specify a device to reconfigure [ 1070.000060] nbd: must specify a device to reconfigure [ 1070.005530] nbd: must specify a device to reconfigure 12:34:25 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:25 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r6) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:25 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r6) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:25 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:25 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, 0x0, 0x300, 0x3, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x307}]}, 0x20}, 0x1, 0x0, 0x0, 0x90}, 0x4040040) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, 0x0, 0x300, 0x3, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x307}]}, 0x20}, 0x1, 0x0, 0x0, 0x90}, 0x4040040) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (async) 12:34:25 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:25 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x40, r5, 0x100, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x40}, 0x1, 0x0, 0x0, 0x4040050}, 0x4) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r6, @ANYBLOB="0109000000000000000003000000"], 0x14}}, 0x0) [ 1070.200879] nbd: must specify a device to reconfigure [ 1070.206585] nbd: must specify a device to reconfigure [ 1070.223118] nbd: must specify a device to reconfigure [ 1070.229331] nbd: must specify a device to reconfigure 12:34:25 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:25 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}, 0x1, 0x0, 0x0, 0x8804}, 0x90) 12:34:25 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r6) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:25 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_START(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000140)={&(0x7f0000000040)={0x14, r1, 0x200, 0x70bd27, 0x25dedbfd, {}, ["", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) 12:34:25 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:25 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) [ 1070.511545] nbd: must specify a device to reconfigure 12:34:25 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x40, r5, 0x100, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x40}, 0x1, 0x0, 0x0, 0x4040050}, 0x4) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r6, @ANYBLOB="0109000000000000000003000000"], 0x14}}, 0x0) 12:34:25 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}}, 0x90) [ 1070.532247] nbd: must specify a device to reconfigure [ 1070.539254] nbd: must specify a device to reconfigure 12:34:25 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000100), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_START(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000140)={&(0x7f0000000040)={0x14, r1, 0x200, 0x70bd27, 0x25dedbfd, {}, ["", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) 12:34:26 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:26 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) [ 1070.631182] nbd: must specify a device to reconfigure [ 1070.660568] nbd: must specify a device to reconfigure [ 1070.666844] nbd: must specify a device to reconfigure 12:34:26 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}}, 0x0) 12:34:26 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$net_dm(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NET_DM_CMD_START(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000140)={&(0x7f0000000040)={0x14, r1, 0x200, 0x70bd27, 0x25dedbfd, {}, ["", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000100), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NET_DM_CMD_START(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000140)={&(0x7f0000000040)={0x14, r1, 0x200, 0x70bd27, 0x25dedbfd, {}, ["", "", "", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r3) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r4, 0x1}, 0x14}}, 0x0) (async) [ 1070.680833] nbd: must specify a device to reconfigure 12:34:26 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000002640), r2) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xd, 0xa, '/dev/dsp\x00'}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x40, r5, 0x100, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x40}, 0x1, 0x0, 0x0, 0x4040050}, 0x4) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r6, @ANYBLOB="0109000000000000000003000000"], 0x14}}, 0x0) 12:34:26 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:26 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x5e}]}, 0x20}}, 0x0) [ 1070.763650] block nbd2: not configured, cannot reconfigure 12:34:26 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:26 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x20, r2, 0x1, 0x0, 0x25dfdbfb, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x200}]}, 0x20}}, 0x0) getpriority(0x0, 0xffffffffffffffff) 12:34:26 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NET_DM_CMD_START(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x8, 0x70bd2a, 0x25dfdbfb, {}, ["", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40000}, 0x8040) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="09ffffff", @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) [ 1070.808222] nbd: must specify a device to reconfigure [ 1070.814848] nbd: must specify a device to reconfigure 12:34:26 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:26 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NET_DM_CMD_START(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x8, 0x70bd2a, 0x25dfdbfb, {}, ["", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40000}, 0x8040) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="09ffffff", @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) 12:34:26 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:26 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x20, r2, 0x1, 0x0, 0x25dfdbfb, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x200}]}, 0x20}}, 0x0) (async) getpriority(0x0, 0xffffffffffffffff) [ 1070.892339] nbd: must specify a device to reconfigure [ 1070.897692] nbd: must specify a device to reconfigure 12:34:26 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NET_DM_CMD_START(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x8, 0x70bd2a, 0x25dfdbfb, {}, ["", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40000}, 0x8040) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="09ffffff", @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NET_DM_CMD_START(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x0, 0x8, 0x70bd2a, 0x25dfdbfb, {}, ["", "", "", ""]}, 0x14}, 0x1, 0x0, 0x0, 0x40000}, 0x8040) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="09ffffff", @ANYRES16=r2, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) (async) 12:34:26 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:26 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, 0x0, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) [ 1071.005522] nbd: must specify a device to reconfigure 12:34:26 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)={0x20, r2, 0x1, 0x0, 0x25dfdbfb, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x200}]}, 0x20}}, 0x0) (async, rerun: 32) getpriority(0x0, 0xffffffffffffffff) (rerun: 32) 12:34:26 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:26 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, 0x0, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:26 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:26 executing program 0: r0 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r1, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x30, r2, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp}, @L2TP_ATTR_COOKIE={0xc}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x30}}, 0x0) sendmsg$L2TP_CMD_NOOP(r0, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x30, r2, 0x200, 0x70bd2b, 0x25dfdbff, {}, [@L2TP_ATTR_ENCAP_TYPE={0x6, 0x2, 0x1}, @L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0xfb46}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x9}]}, 0x30}, 0x1, 0x0, 0x0, 0x4000080}, 0x8080) ioctl$SNDRV_CTL_IOCTL_ELEM_LOCK(r0, 0x40405514, &(0x7f0000000000)={0x2, 0x3, 0x80000000, 0x68de, 'syz0\x00', 0x7}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r5, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r7, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000380)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000240)={&(0x7f0000000300)={0x64, r5, 0x300, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3f}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x27}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '}{'}]}, 0x64}, 0x1, 0x0, 0x0, 0x20008081}, 0x8000) 12:34:26 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = bpf$ITER_CREATE(0x21, &(0x7f0000000080), 0x8) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x54, r2, 0x0, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '@}'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xb80}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x121}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x54}, 0x1, 0x0, 0x0, 0x4000001}, 0x20000001) ioctl$SNDRV_CTL_IOCTL_TLV_COMMAND(0xffffffffffffffff, 0xc008551c, &(0x7f0000000000)={0x3, 0x8, [0x3, 0x4]}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) 12:34:26 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:26 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, 0x0, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:26 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:26 executing program 0: r0 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r1, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x30, r2, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp}, @L2TP_ATTR_COOKIE={0xc}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x30}}, 0x0) sendmsg$L2TP_CMD_NOOP(r0, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x30, r2, 0x200, 0x70bd2b, 0x25dfdbff, {}, [@L2TP_ATTR_ENCAP_TYPE={0x6, 0x2, 0x1}, @L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0xfb46}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x9}]}, 0x30}, 0x1, 0x0, 0x0, 0x4000080}, 0x8080) ioctl$SNDRV_CTL_IOCTL_ELEM_LOCK(r0, 0x40405514, &(0x7f0000000000)={0x2, 0x3, 0x80000000, 0x68de, 'syz0\x00', 0x7}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r5, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r7, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000380)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000240)={&(0x7f0000000300)={0x64, r5, 0x300, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3f}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x27}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '}{'}]}, 0x64}, 0x1, 0x0, 0x0, 0x20008081}, 0x8000) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) (async) sendmsg$L2TP_CMD_SESSION_GET(r1, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x30, r2, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp}, @L2TP_ATTR_COOKIE={0xc}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x30}}, 0x0) (async) sendmsg$L2TP_CMD_NOOP(r0, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x30, r2, 0x200, 0x70bd2b, 0x25dfdbff, {}, [@L2TP_ATTR_ENCAP_TYPE={0x6, 0x2, 0x1}, @L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0xfb46}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x9}]}, 0x30}, 0x1, 0x0, 0x0, 0x4000080}, 0x8080) (async) ioctl$SNDRV_CTL_IOCTL_ELEM_LOCK(r0, 0x40405514, &(0x7f0000000000)={0x2, 0x3, 0x80000000, 0x68de, 'syz0\x00', 0x7}) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r5, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r7, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000380)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000240)={&(0x7f0000000300)={0x64, r5, 0x300, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3f}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x27}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '}{'}]}, 0x64}, 0x1, 0x0, 0x0, 0x20008081}, 0x8000) (async) [ 1071.223988] nbd: must specify a device to reconfigure 12:34:26 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:26 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = bpf$ITER_CREATE(0x21, &(0x7f0000000080), 0x8) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x54, r2, 0x0, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '@}'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xb80}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x121}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x54}, 0x1, 0x0, 0x0, 0x4000001}, 0x20000001) (async) ioctl$SNDRV_CTL_IOCTL_TLV_COMMAND(0xffffffffffffffff, 0xc008551c, &(0x7f0000000000)={0x3, 0x8, [0x3, 0x4]}) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) [ 1071.330654] nbd: must specify a device to reconfigure 12:34:26 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:26 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:26 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = bpf$ITER_CREATE(0x21, &(0x7f0000000080), 0x8) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x54, r2, 0x0, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '@}'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xb80}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x121}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x54}, 0x1, 0x0, 0x0, 0x4000001}, 0x20000001) ioctl$SNDRV_CTL_IOCTL_TLV_COMMAND(0xffffffffffffffff, 0xc008551c, &(0x7f0000000000)={0x3, 0x8, [0x3, 0x4]}) (async, rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, r2, 0x1}, 0x14}}, 0x0) (rerun: 64) 12:34:26 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:26 executing program 0: r0 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, 0x0, 0x0) (async) r1 = socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r1, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x30, r2, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp}, @L2TP_ATTR_COOKIE={0xc}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x30}}, 0x0) (async, rerun: 32) sendmsg$L2TP_CMD_NOOP(r0, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x30, r2, 0x200, 0x70bd2b, 0x25dfdbff, {}, [@L2TP_ATTR_ENCAP_TYPE={0x6, 0x2, 0x1}, @L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0xfb46}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x9}]}, 0x30}, 0x1, 0x0, 0x0, 0x4000080}, 0x8080) (async, rerun: 32) ioctl$SNDRV_CTL_IOCTL_ELEM_LOCK(r0, 0x40405514, &(0x7f0000000000)={0x2, 0x3, 0x80000000, 0x68de, 'syz0\x00', 0x7}) (async, rerun: 64) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r5, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x0) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r7 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r7, 0x0, 0x0) (async, rerun: 64) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000380)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000240)={&(0x7f0000000300)={0x64, r5, 0x300, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3f}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x27}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '}{'}]}, 0x64}, 0x1, 0x0, 0x0, 0x20008081}, 0x8000) (rerun: 64) 12:34:26 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:26 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 2: read$watch_queue(0xffffffffffffffff, &(0x7f0000000000)=""/57, 0x39) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_open_dev$midi(&(0x7f0000000040), 0x63, 0x101100) ioctl$SNDRV_RAWMIDI_IOCTL_PARAMS(r2, 0xc0305710, &(0x7f0000000080)={0x1, 0x0, 0x716e, 0x1}) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r4 = bpf$LINK_GET_FD_BY_ID(0x1e, &(0x7f00000000c0), 0x4) bpf$ITER_CREATE(0x21, &(0x7f0000000100)={r4}, 0x8) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000180)={0x38, r3, 0x200, 0x0, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3f}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xc}]}, 0x38}}, 0x0) [ 1071.635001] nbd: must specify a device to reconfigure 12:34:27 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000300)=ANY=[@ANYRESDEC=r1, @ANYRES16=r1, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x4000000) r3 = syz_open_dev$audion(&(0x7f0000000000), 0x6, 0x100) r4 = socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x30, r5, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp}, @L2TP_ATTR_COOKIE={0xc}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x30}}, 0x0) r6 = socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r6, &(0x7f00000002c0)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x30, r7, 0x1, 0x3, 0x0, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp}, @L2TP_ATTR_COOKIE={0xc}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x30}, 0x1, 0x0, 0x0, 0x20000040}, 0x0) sendmsg$L2TP_CMD_SESSION_MODIFY(r3, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2}, 0x8, &(0x7f0000000100)={&(0x7f0000000080)={0x5c, r5, 0x400, 0x70bd25, 0x25dfdbfe, {}, [@L2TP_ATTR_SEND_SEQ={0x5, 0x13, 0x1}, @L2TP_ATTR_MRU={0x6, 0x1d, 0x4}, @L2TP_ATTR_UDP_DPORT={0x6, 0x1b, 0x4e21}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @private2}, @L2TP_ATTR_MRU={0x6, 0x1d, 0x1}, @L2TP_ATTR_ENCAP_TYPE={0x0, 0x2, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x80}, 0x0) 12:34:27 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 2: read$watch_queue(0xffffffffffffffff, &(0x7f0000000000)=""/57, 0x39) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_open_dev$midi(&(0x7f0000000040), 0x63, 0x101100) ioctl$SNDRV_RAWMIDI_IOCTL_PARAMS(r2, 0xc0305710, &(0x7f0000000080)={0x1, 0x0, 0x716e, 0x1}) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r4 = bpf$LINK_GET_FD_BY_ID(0x1e, &(0x7f00000000c0), 0x4) bpf$ITER_CREATE(0x21, &(0x7f0000000100)={r4}, 0x8) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000180)={0x38, r3, 0x200, 0x0, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3f}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xc}]}, 0x38}}, 0x0) read$watch_queue(0xffffffffffffffff, &(0x7f0000000000)=""/57, 0x39) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_open_dev$midi(&(0x7f0000000040), 0x63, 0x101100) (async) ioctl$SNDRV_RAWMIDI_IOCTL_PARAMS(r2, 0xc0305710, &(0x7f0000000080)={0x1, 0x0, 0x716e, 0x1}) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) bpf$LINK_GET_FD_BY_ID(0x1e, &(0x7f00000000c0), 0x4) (async) bpf$ITER_CREATE(0x21, &(0x7f0000000100)={r4}, 0x8) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000180)={0x38, r3, 0x200, 0x0, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3f}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xc}]}, 0x38}}, 0x0) (async) 12:34:27 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000300)=ANY=[@ANYRESDEC=r1, @ANYRES16=r1, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x4000000) (async) r3 = syz_open_dev$audion(&(0x7f0000000000), 0x6, 0x100) (async) r4 = socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x30, r5, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp}, @L2TP_ATTR_COOKIE={0xc}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x30}}, 0x0) r6 = socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r6, &(0x7f00000002c0)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x30, r7, 0x1, 0x3, 0x0, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp}, @L2TP_ATTR_COOKIE={0xc}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x30}, 0x1, 0x0, 0x0, 0x20000040}, 0x0) (async) sendmsg$L2TP_CMD_SESSION_MODIFY(r3, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2}, 0x8, &(0x7f0000000100)={&(0x7f0000000080)={0x5c, r5, 0x400, 0x70bd25, 0x25dfdbfe, {}, [@L2TP_ATTR_SEND_SEQ={0x5, 0x13, 0x1}, @L2TP_ATTR_MRU={0x6, 0x1d, 0x4}, @L2TP_ATTR_UDP_DPORT={0x6, 0x1b, 0x4e21}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @private2}, @L2TP_ATTR_MRU={0x6, 0x1d, 0x1}, @L2TP_ATTR_ENCAP_TYPE={0x0, 0x2, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x80}, 0x0) 12:34:27 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 2: read$watch_queue(0xffffffffffffffff, &(0x7f0000000000)=""/57, 0x39) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_open_dev$midi(&(0x7f0000000040), 0x63, 0x101100) ioctl$SNDRV_RAWMIDI_IOCTL_PARAMS(r2, 0xc0305710, &(0x7f0000000080)={0x1, 0x0, 0x716e, 0x1}) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) r4 = bpf$LINK_GET_FD_BY_ID(0x1e, &(0x7f00000000c0), 0x4) bpf$ITER_CREATE(0x21, &(0x7f0000000100)={r4}, 0x8) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000180)={0x38, r3, 0x200, 0x0, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3f}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xc}]}, 0x38}}, 0x0) 12:34:27 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100ffffffffffffffe701000000"], 0x14}}, 0x0) 12:34:27 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000300)=ANY=[@ANYRESDEC=r1, @ANYRES16=r1, @ANYBLOB="0100000000000000000003000000"], 0x14}}, 0x4000000) r3 = syz_open_dev$audion(&(0x7f0000000000), 0x6, 0x100) (async) r4 = socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x30, r5, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp}, @L2TP_ATTR_COOKIE={0xc}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x30}}, 0x0) r6 = socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r6, &(0x7f00000002c0)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x30, r7, 0x1, 0x3, 0x0, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp}, @L2TP_ATTR_COOKIE={0xc}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}]}, 0x30}, 0x1, 0x0, 0x0, 0x20000040}, 0x0) (async) sendmsg$L2TP_CMD_SESSION_MODIFY(r3, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2}, 0x8, &(0x7f0000000100)={&(0x7f0000000080)={0x5c, r5, 0x400, 0x70bd25, 0x25dfdbfe, {}, [@L2TP_ATTR_SEND_SEQ={0x5, 0x13, 0x1}, @L2TP_ATTR_MRU={0x6, 0x1d, 0x4}, @L2TP_ATTR_UDP_DPORT={0x6, 0x1b, 0x4e21}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @private2}, @L2TP_ATTR_MRU={0x6, 0x1d, 0x1}, @L2TP_ATTR_ENCAP_TYPE={0x0, 0x2, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x80}, 0x0) 12:34:27 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100ffffffffffffffe701000000"], 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100ffffffffffffffe701000000"], 0x14}}, 0x0) (async) 12:34:27 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, 0x0, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, 0x0, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r1, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r1, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$net_dm(&(0x7f0000000000), r0) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0100ffffffffffffffe701000000"], 0x14}}, 0x0) 12:34:27 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, 0x0, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="1b8eeba4d57f020da855e4031c077e5b3cfae12de5efed4488b9"], 0x14}}, 0x0) 12:34:27 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r1, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) [ 1072.446980] nbd: must specify at least one socket 12:34:27 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:27 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="1b8eeba4d57f020da855e4031c077e5b3cfae12de5efed4488b9"], 0x14}}, 0x0) 12:34:27 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r4}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="1b8eeba4d57f020da855e4031c077e5b3cfae12de5efed4488b9"], 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="1b8eeba4d57f020da855e4031c077e5b3cfae12de5efed4488b9"], 0x14}}, 0x0) (async) 12:34:28 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, 0x0, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r3}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, 0x0, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r3}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, 0x0, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r3}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 0: r0 = syz_open_dev$audion(&(0x7f0000000000), 0x7, 0x12180) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = bpf$ITER_CREATE(0x21, &(0x7f0000000100)={r0}, 0x8) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x48, 0x0, 0x20, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}]}, 0x48}, 0x1, 0x0, 0x0, 0x20004004}, 0x40814) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000640)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000240)=ANY=[@ANYBLOB="28000000f89a755760e0d85aefa0e1cbdb45e6d4b4c37d17923362f97c57b289c1279be5f3a252719cd7cb94a1c8158bee0bf122a036ae81e1ea4ac44c66af982752e1b16a5b33d840c38d9ef13743b17fba18ab7f688326af1ae2f6d1de0209b58f45b843f74706c69d11d71ddbad87315d2dddc7058064cac385b4a00b6ec46a574853df437acb56262281cd28cd356e0cb83ab6bf7fa8b935e2e2696b6bbda56a062dda5813d9d891d3b253c2c5a4979b067d938a1786778c2f8c6418d9f52a7cd494d28f579c41ff8518264caafe055bc41376c8fff8f7ca3f72c40d9ff41224c31fb09fd3bc318a23bc061e034587ca25b9f25ba9f1d978a58886056e726a4bc82ba970329ac2f6bb4ba2ae43ad4d79e485", @ANYRES16=r2, @ANYBLOB="010000000000fcdbdf250300000008000100000000000c0006000000000000000000"], 0xfffffffffffffdf0}, 0x1, 0x0, 0x0, 0x800}, 0x0) 12:34:28 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r1, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r3}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r1, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 0: r0 = syz_open_dev$audion(&(0x7f0000000000), 0x7, 0x12180) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = bpf$ITER_CREATE(0x21, &(0x7f0000000100)={r0}, 0x8) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x48, 0x0, 0x20, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}]}, 0x48}, 0x1, 0x0, 0x0, 0x20004004}, 0x40814) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000640)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000240)=ANY=[@ANYBLOB="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", @ANYRES16=r2, @ANYBLOB="010000000000fcdbdf250300000008000100000000000c0006000000000000000000"], 0xfffffffffffffdf0}, 0x1, 0x0, 0x0, 0x800}, 0x0) 12:34:28 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r2 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r1, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r2}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r3}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r1, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 0: r0 = syz_open_dev$audion(&(0x7f0000000000), 0x7, 0x12180) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = bpf$ITER_CREATE(0x21, &(0x7f0000000100)={r0}, 0x8) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x48, 0x0, 0x20, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}]}, 0x48}, 0x1, 0x0, 0x0, 0x20004004}, 0x40814) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000640)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000240)=ANY=[@ANYBLOB="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", @ANYRES16=r2, @ANYBLOB="010000000000fcdbdf250300000008000100000000000c0006000000000000000000"], 0xfffffffffffffdf0}, 0x1, 0x0, 0x0, 0x800}, 0x0) syz_open_dev$audion(&(0x7f0000000000), 0x7, 0x12180) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) bpf$ITER_CREATE(0x21, &(0x7f0000000100)={r0}, 0x8) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x48, 0x0, 0x20, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}]}, 0x48}, 0x1, 0x0, 0x0, 0x20004004}, 0x40814) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000640)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000240)=ANY=[@ANYBLOB="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", @ANYRES16=r2, @ANYBLOB="010000000000fcdbdf250300000008000100000000000c0006000000000000000000"], 0xfffffffffffffdf0}, 0x1, 0x0, 0x0, 0x800}, 0x0) (async) 12:34:28 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r2 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r1, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r2}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r1, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r3}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r2 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r1, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r2}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r3}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r1, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r1, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r0) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r0) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r3}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 12:34:28 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r0) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:28 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r2 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r1, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r2}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) [ 1073.609218] nla_parse: 400 callbacks suppressed [ 1073.609223] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 1073.622748] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 1073.634409] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 1073.644378] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 1073.654257] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 1073.663872] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 1073.672864] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. 12:34:29 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:29 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r2 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r1, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r2}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:29 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 12:34:29 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r3}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:29 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:29 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:29 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 12:34:29 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r2 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r1, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r2}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) [ 1073.814620] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. [ 1073.837343] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. [ 1073.851087] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. 12:34:29 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:29 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:29 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r3 = syz_open_dev$audion(0x0, 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:29 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) r5 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r5, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:29 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f0000000580)={0x14, 0x0, 0x1}, 0x14}}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r3, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r4}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:29 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r3 = syz_open_dev$audion(0x0, 0x8, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) 12:34:29 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) [ 1074.086695] ================================================================== [ 1074.094252] BUG: KASAN: use-after-free in refcount_dec_not_one+0x9a/0xc0 [ 1074.101271] Read of size 4 at addr ffff88808f6ba3d8 by task syz-executor.5/15293 [ 1074.108795] [ 1074.110424] CPU: 0 PID: 15293 Comm: syz-executor.5 Not tainted 4.14.293-syzkaller #0 [ 1074.118293] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 1074.127634] Call Trace: [ 1074.130227] dump_stack+0x1b2/0x281 [ 1074.133860] print_address_description.cold+0x54/0x1d3 [ 1074.139137] kasan_report_error.cold+0x8a/0x191 [ 1074.143807] ? refcount_dec_not_one+0x9a/0xc0 [ 1074.148308] __asan_report_load4_noabort+0x68/0x70 [ 1074.153237] ? refcount_dec_not_one+0x9a/0xc0 [ 1074.157729] refcount_dec_not_one+0x9a/0xc0 [ 1074.162050] refcount_dec_and_mutex_lock+0x1a/0x60 [ 1074.166983] nbd_genl_connect+0xce1/0x13e0 [ 1074.171220] ? nbd_xmit_timeout+0x500/0x500 [ 1074.175655] ? validate_nla+0x192/0x5e0 [ 1074.179637] genl_family_rcv_msg+0x572/0xb20 12:34:29 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r3 = syz_open_dev$audion(&(0x7f00000003c0), 0x8, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0xd8, r2, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0xffffffffffffff46}, {0x8, 0x1, r3}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xd8}, 0x1, 0x0, 0x0, 0x24004880}, 0x0) [ 1074.184048] ? genl_rcv+0x40/0x40 [ 1074.187490] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1074.192965] ? __kmalloc_node_track_caller+0x4c/0x70 [ 1074.198048] ? trace_hardirqs_on+0x10/0x10 [ 1074.202280] genl_rcv_msg+0xaf/0x140 [ 1074.205974] netlink_rcv_skb+0x125/0x390 [ 1074.210012] ? genl_family_rcv_msg+0xb20/0xb20 [ 1074.214581] ? netlink_ack+0x9a0/0x9a0 [ 1074.218471] ? lock_acquire+0x170/0x3f0 [ 1074.222446] genl_rcv+0x24/0x40 [ 1074.225722] netlink_unicast+0x437/0x610 [ 1074.229777] ? netlink_sendskb+0xd0/0xd0 [ 1074.233827] ? __check_object_size+0x179/0x230 [ 1074.238396] netlink_sendmsg+0x648/0xbc0 [ 1074.242455] ? nlmsg_notify+0x1b0/0x1b0 [ 1074.246414] ? kernel_recvmsg+0x210/0x210 [ 1074.250551] ? security_socket_sendmsg+0x83/0xb0 [ 1074.255303] ? nlmsg_notify+0x1b0/0x1b0 [ 1074.259267] sock_sendmsg+0xb5/0x100 [ 1074.262971] ___sys_sendmsg+0x6c8/0x800 [ 1074.266962] ? copy_msghdr_from_user+0x3b0/0x3b0 [ 1074.271701] ? do_sys_open+0x203/0x410 [ 1074.275577] ? do_syscall_64+0x1d5/0x640 [ 1074.279634] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1074.284983] ? do_futex+0x127/0x1570 [ 1074.288691] ? __fget+0x23e/0x3e0 [ 1074.292129] ? lock_acquire+0x170/0x3f0 [ 1074.296082] ? lock_downgrade+0x740/0x740 [ 1074.300216] ? __fdget+0x19b/0x1f0 [ 1074.303748] ? sockfd_lookup_light+0xb2/0x160 [ 1074.308239] __sys_sendmsg+0xa3/0x120 [ 1074.312024] ? SyS_shutdown+0x160/0x160 [ 1074.315986] ? __do_page_fault+0x159/0xad0 [ 1074.321430] SyS_sendmsg+0x27/0x40 [ 1074.324959] ? __sys_sendmsg+0x120/0x120 [ 1074.329000] do_syscall_64+0x1d5/0x640 [ 1074.332870] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1074.338040] RIP: 0033:0x7f26eaf42409 [ 1074.341729] RSP: 002b:00007f26e98b7168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1074.349422] RAX: ffffffffffffffda RBX: 00007f26eb054f80 RCX: 00007f26eaf42409 [ 1074.356791] RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000006 [ 1074.364051] RBP: 00007f26eaf9d367 R08: 0000000000000000 R09: 0000000000000000 [ 1074.371328] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 1074.378591] R13: 00007fff8b16469f R14: 00007f26e98b7300 R15: 0000000000022000 [ 1074.385855] [ 1074.387469] Allocated by task 15240: [ 1074.391172] kasan_kmalloc+0xeb/0x160 [ 1074.394965] kmem_cache_alloc_trace+0x131/0x3d0 [ 1074.399637] nbd_dev_add+0x7c/0x800 [ 1074.403246] nbd_genl_connect+0x36c/0x13e0 [ 1074.407461] genl_family_rcv_msg+0x572/0xb20 [ 1074.411847] genl_rcv_msg+0xaf/0x140 [ 1074.415544] netlink_rcv_skb+0x125/0x390 [ 1074.419593] genl_rcv+0x24/0x40 [ 1074.422862] netlink_unicast+0x437/0x610 [ 1074.426912] netlink_sendmsg+0x648/0xbc0 [ 1074.431038] sock_sendmsg+0xb5/0x100 [ 1074.434728] ___sys_sendmsg+0x6c8/0x800 [ 1074.438694] __sys_sendmsg+0xa3/0x120 [ 1074.442475] SyS_sendmsg+0x27/0x40 [ 1074.446093] do_syscall_64+0x1d5/0x640 [ 1074.449976] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1074.455140] [ 1074.456748] Freed by task 15293: [ 1074.460122] kasan_slab_free+0xc3/0x1a0 [ 1074.464079] kfree+0xc9/0x250 [ 1074.467165] nbd_put.part.0+0x100/0x140 [ 1074.471120] nbd_config_put+0x51c/0x6c0 [ 1074.475072] nbd_genl_connect+0xcb9/0x13e0 [ 1074.479288] genl_family_rcv_msg+0x572/0xb20 [ 1074.483681] genl_rcv_msg+0xaf/0x140 [ 1074.487384] netlink_rcv_skb+0x125/0x390 [ 1074.491427] genl_rcv+0x24/0x40 [ 1074.494687] netlink_unicast+0x437/0x610 [ 1074.498726] netlink_sendmsg+0x648/0xbc0 [ 1074.502767] sock_sendmsg+0xb5/0x100 [ 1074.506461] ___sys_sendmsg+0x6c8/0x800 [ 1074.510413] __sys_sendmsg+0xa3/0x120 [ 1074.514200] SyS_sendmsg+0x27/0x40 [ 1074.517785] do_syscall_64+0x1d5/0x640 [ 1074.521667] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1074.526852] [ 1074.528483] The buggy address belongs to the object at ffff88808f6ba300 [ 1074.528483] which belongs to the cache kmalloc-512 of size 512 [ 1074.541132] The buggy address is located 216 bytes inside of [ 1074.541132] 512-byte region [ffff88808f6ba300, ffff88808f6ba500) [ 1074.552986] The buggy address belongs to the page: [ 1074.557945] page:ffffea00023dae80 count:1 mapcount:0 mapping:ffff88808f6ba080 index:0x0 [ 1074.566101] flags: 0xfff00000000100(slab) [ 1074.570236] raw: 00fff00000000100 ffff88808f6ba080 0000000000000000 0000000100000006 [ 1074.578129] raw: ffffea0002ae2f20 ffffea0002ad1ba0 ffff88813fe74940 0000000000000000 [ 1074.586017] page dumped because: kasan: bad access detected [ 1074.591857] [ 1074.593473] Memory state around the buggy address: [ 1074.598385] ffff88808f6ba280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 1074.605724] ffff88808f6ba300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1074.613059] >ffff88808f6ba380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1074.620393] ^ [ 1074.626631] ffff88808f6ba400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1074.633987] ffff88808f6ba480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1074.641339] ================================================================== [ 1074.648837] Disabling lock debugging due to kernel taint [ 1074.658241] Kernel panic - not syncing: panic_on_warn set ... [ 1074.658241] [ 1074.665697] CPU: 0 PID: 15293 Comm: syz-executor.5 Tainted: G B 4.14.293-syzkaller #0 [ 1074.674790] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 1074.684138] Call Trace: [ 1074.686722] dump_stack+0x1b2/0x281 [ 1074.690352] panic+0x1f9/0x42d [ 1074.693540] ? add_taint.cold+0x16/0x16 [ 1074.697506] ? ___preempt_schedule+0x16/0x18 [ 1074.701906] kasan_end_report+0x43/0x49 [ 1074.705866] kasan_report_error.cold+0xa7/0x191 [ 1074.710554] ? refcount_dec_not_one+0x9a/0xc0 [ 1074.715032] __asan_report_load4_noabort+0x68/0x70 [ 1074.719956] ? refcount_dec_not_one+0x9a/0xc0 [ 1074.724443] refcount_dec_not_one+0x9a/0xc0 [ 1074.728744] refcount_dec_and_mutex_lock+0x1a/0x60 [ 1074.733682] nbd_genl_connect+0xce1/0x13e0 [ 1074.737895] ? nbd_xmit_timeout+0x500/0x500 [ 1074.742196] ? validate_nla+0x192/0x5e0 [ 1074.746161] genl_family_rcv_msg+0x572/0xb20 [ 1074.750566] ? genl_rcv+0x40/0x40 [ 1074.754030] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1074.759467] ? __kmalloc_node_track_caller+0x4c/0x70 [ 1074.764553] ? trace_hardirqs_on+0x10/0x10 [ 1074.768779] genl_rcv_msg+0xaf/0x140 [ 1074.772472] netlink_rcv_skb+0x125/0x390 [ 1074.776602] ? genl_family_rcv_msg+0xb20/0xb20 [ 1074.781161] ? netlink_ack+0x9a0/0x9a0 [ 1074.785027] ? lock_acquire+0x170/0x3f0 [ 1074.788980] genl_rcv+0x24/0x40 [ 1074.792247] netlink_unicast+0x437/0x610 [ 1074.796290] ? netlink_sendskb+0xd0/0xd0 [ 1074.800334] ? __check_object_size+0x179/0x230 [ 1074.804906] netlink_sendmsg+0x648/0xbc0 [ 1074.808947] ? nlmsg_notify+0x1b0/0x1b0 [ 1074.812913] ? kernel_recvmsg+0x210/0x210 [ 1074.817037] ? security_socket_sendmsg+0x83/0xb0 [ 1074.821772] ? nlmsg_notify+0x1b0/0x1b0 [ 1074.825727] sock_sendmsg+0xb5/0x100 [ 1074.829417] ___sys_sendmsg+0x6c8/0x800 [ 1074.833368] ? copy_msghdr_from_user+0x3b0/0x3b0 [ 1074.838099] ? do_sys_open+0x203/0x410 [ 1074.841964] ? do_syscall_64+0x1d5/0x640 [ 1074.846004] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1074.851347] ? do_futex+0x127/0x1570 [ 1074.855044] ? __fget+0x23e/0x3e0 [ 1074.858482] ? lock_acquire+0x170/0x3f0 [ 1074.862434] ? lock_downgrade+0x740/0x740 [ 1074.866562] ? __fdget+0x19b/0x1f0 [ 1074.870104] ? sockfd_lookup_light+0xb2/0x160 [ 1074.874581] __sys_sendmsg+0xa3/0x120 [ 1074.878356] ? SyS_shutdown+0x160/0x160 [ 1074.882315] ? __do_page_fault+0x159/0xad0 [ 1074.886532] SyS_sendmsg+0x27/0x40 [ 1074.890047] ? __sys_sendmsg+0x120/0x120 [ 1074.894086] do_syscall_64+0x1d5/0x640 [ 1074.897961] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1074.903135] RIP: 0033:0x7f26eaf42409 [ 1074.906828] RSP: 002b:00007f26e98b7168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1074.914509] RAX: ffffffffffffffda RBX: 00007f26eb054f80 RCX: 00007f26eaf42409 [ 1074.921760] RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000006 [ 1074.929008] RBP: 00007f26eaf9d367 R08: 0000000000000000 R09: 0000000000000000 [ 1074.936263] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 1074.943516] R13: 00007fff8b16469f R14: 00007f26e98b7300 R15: 0000000000022000 [ 1074.950843] Kernel Offset: disabled [ 1074.954452] Rebooting in 86400 seconds..